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Finding the Fourth Proportional to 424,871.08, 637,158.12 and 125,272.12

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Solution

The fourth proportional to 424,871.08, 637,158.12 and 125,272.12 is: 187,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,871.08 : 637,158.12 = 125,272.12 : x
  2. Step 2: Convert to fraction form
    424,871.08/637,158.12 = 125,272.12/x
  3. Step 3: Cross multiply
    424,871.08x = 637,158.12 × 125,272.12
  4. Step 4: Simplify right side
    424,871.08x = 79,818,148,467.61
  5. Step 5: Solve for x
    x = 79,818,148,467.61/424,871.08
  6. Step 6: Final answer
    x = 187,864.40

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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.