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Finding the Fourth Proportional to 108,614.87, 162,710.21 and 51,607.65

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Solution

The fourth proportional to 108,614.87, 162,710.21 and 51,607.65 is: 77,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,614.87 : 162,710.21 = 51,607.65 : x
  2. Step 2: Convert to fraction form
    108,614.87/162,710.21 = 51,607.65/x
  3. Step 3: Cross multiply
    108,614.87x = 162,710.21 × 51,607.65
  4. Step 4: Simplify right side
    108,614.87x = 8,397,092,308.29
  5. Step 5: Solve for x
    x = 8,397,092,308.29/108,614.87
  6. Step 6: Final answer
    x = 77,310.70

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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.