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Finding the Fourth Proportional to 435,866.72, 653,781.95 and 151,621.64

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Solution

The fourth proportional to 435,866.72, 653,781.95 and 151,621.64 is: 227,426.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,866.72 : 653,781.95 = 151,621.64 : x
  2. Step 2: Convert to fraction form
    435,866.72/653,781.95 = 151,621.64/x
  3. Step 3: Cross multiply
    435,866.72x = 653,781.95 × 151,621.64
  4. Step 4: Simplify right side
    435,866.72x = 99,127,490,454.64
  5. Step 5: Solve for x
    x = 99,127,490,454.64/435,866.72
  6. Step 6: Final answer
    x = 227,426.15

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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.