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Finding the Fourth Proportional to 658,157.41, 987,236.13 and 159,521.41

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Solution

The fourth proportional to 658,157.41, 987,236.13 and 159,521.41 is: 239,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,157.41 : 987,236.13 = 159,521.41 : x
  2. Step 2: Convert to fraction form
    658,157.41/987,236.13 = 159,521.41/x
  3. Step 3: Cross multiply
    658,157.41x = 987,236.13 × 159,521.41
  4. Step 4: Simplify right side
    658,157.41x = 157,485,299,460.54
  5. Step 5: Solve for x
    x = 157,485,299,460.54/658,157.41
  6. Step 6: Final answer
    x = 239,282.12

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.