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Finding the Fourth Proportional to 90,343.92, 124,683.84 and 52,104.96

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Solution

The fourth proportional to 90,343.92, 124,683.84 and 52,104.96 is: 71,910.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.92 : 124,683.84 = 52,104.96 : x
  2. Step 2: Convert to fraction form
    90,343.92/124,683.84 = 52,104.96/x
  3. Step 3: Cross multiply
    90,343.92x = 124,683.84 × 52,104.96
  4. Step 4: Simplify right side
    90,343.92x = 6,496,646,495.85
  5. Step 5: Solve for x
    x = 6,496,646,495.85/90,343.92
  6. Step 6: Final answer
    x = 71,910.17

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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.