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Finding the Fourth Proportional to 125,551.48, 173,218.14 and 71,816.92

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Solution

The fourth proportional to 125,551.48, 173,218.14 and 71,816.92 is: 99,082.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,551.48 : 173,218.14 = 71,816.92 : x
  2. Step 2: Convert to fraction form
    125,551.48/173,218.14 = 71,816.92/x
  3. Step 3: Cross multiply
    125,551.48x = 173,218.14 × 71,816.92
  4. Step 4: Simplify right side
    125,551.48x = 12,439,993,302.93
  5. Step 5: Solve for x
    x = 12,439,993,302.93/125,551.48
  6. Step 6: Final answer
    x = 99,082.81

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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.