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Finding the Fourth Proportional to 125,861.92, 188,909.68 and 63,576.16

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Solution

The fourth proportional to 125,861.92, 188,909.68 and 63,576.16 is: 95,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,861.92 : 188,909.68 = 63,576.16 : x
  2. Step 2: Convert to fraction form
    125,861.92/188,909.68 = 63,576.16/x
  3. Step 3: Cross multiply
    125,861.92x = 188,909.68 × 63,576.16
  4. Step 4: Simplify right side
    125,861.92x = 12,010,152,041.23
  5. Step 5: Solve for x
    x = 12,010,152,041.23/125,861.92
  6. Step 6: Final answer
    x = 95,423.24

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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.