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Finding the Fourth Proportional to 125,871.92, 188,924.56 and 63,586.16

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Solution

The fourth proportional to 125,871.92, 188,924.56 and 63,586.16 is: 95,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,871.92 : 188,924.56 = 63,586.16 : x
  2. Step 2: Convert to fraction form
    125,871.92/188,924.56 = 63,586.16/x
  3. Step 3: Cross multiply
    125,871.92x = 188,924.56 × 63,586.16
  4. Step 4: Simplify right side
    125,871.92x = 12,012,987,300.09
  5. Step 5: Solve for x
    x = 12,012,987,300.09/125,871.92
  6. Step 6: Final answer
    x = 95,438.18

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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.