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Finding the Fourth Proportional to 178,484.26, 246,404.21 and 137,858.84

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Solution

The fourth proportional to 178,484.26, 246,404.21 and 137,858.84 is: 190,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,484.26 : 246,404.21 = 137,858.84 : x
  2. Step 2: Convert to fraction form
    178,484.26/246,404.21 = 137,858.84/x
  3. Step 3: Cross multiply
    178,484.26x = 246,404.21 × 137,858.84
  4. Step 4: Simplify right side
    178,484.26x = 33,968,998,561.72
  5. Step 5: Solve for x
    x = 33,968,998,561.72/178,484.26
  6. Step 6: Final answer
    x = 190,319.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.