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Finding the Fourth Proportional to 102,125.70, 140,928.92 and 59,098.36

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Solution

The fourth proportional to 102,125.70, 140,928.92 and 59,098.36 is: 81,553.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,125.70 : 140,928.92 = 59,098.36 : x
  2. Step 2: Convert to fraction form
    102,125.70/140,928.92 = 59,098.36/x
  3. Step 3: Cross multiply
    102,125.70x = 140,928.92 × 59,098.36
  4. Step 4: Simplify right side
    102,125.70x = 8,328,668,048.57
  5. Step 5: Solve for x
    x = 8,328,668,048.57/102,125.70
  6. Step 6: Final answer
    x = 81,553.11

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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.