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Finding the Fourth Proportional to 541,415.10, 812,122.65 and 167,438.10

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Solution

The fourth proportional to 541,415.10, 812,122.65 and 167,438.10 is: 251,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,415.10 : 812,122.65 = 167,438.10 : x
  2. Step 2: Convert to fraction form
    541,415.10/812,122.65 = 167,438.10/x
  3. Step 3: Cross multiply
    541,415.10x = 812,122.65 × 167,438.10
  4. Step 4: Simplify right side
    541,415.10x = 135,980,273,482.97
  5. Step 5: Solve for x
    x = 135,980,273,482.97/541,415.10
  6. Step 6: Final answer
    x = 251,157.15

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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.