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Finding the Fourth Proportional to 434,691.16, 651,966.76 and 119,074.30

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Solution

The fourth proportional to 434,691.16, 651,966.76 and 119,074.30 is: 178,592.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,691.16 : 651,966.76 = 119,074.30 : x
  2. Step 2: Convert to fraction form
    434,691.16/651,966.76 = 119,074.30/x
  3. Step 3: Cross multiply
    434,691.16x = 651,966.76 × 119,074.30
  4. Step 4: Simplify right side
    434,691.16x = 77,632,485,570.27
  5. Step 5: Solve for x
    x = 77,632,485,570.27/434,691.16
  6. Step 6: Final answer
    x = 178,592.28

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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.