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Finding the Fourth Proportional to 125,614.72, 173,340.16 and 71,900.16

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Solution

The fourth proportional to 125,614.72, 173,340.16 and 71,900.16 is: 99,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,614.72 : 173,340.16 = 71,900.16 : x
  2. Step 2: Convert to fraction form
    125,614.72/173,340.16 = 71,900.16/x
  3. Step 3: Cross multiply
    125,614.72x = 173,340.16 × 71,900.16
  4. Step 4: Simplify right side
    125,614.72x = 12,463,185,238.43
  5. Step 5: Solve for x
    x = 12,463,185,238.43/125,614.72
  6. Step 6: Final answer
    x = 99,217.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.