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Finding the Fourth Proportional to 90,230.83, 124,489.92 and 52,497.79

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Solution

The fourth proportional to 90,230.83, 124,489.92 and 52,497.79 is: 72,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,230.83 : 124,489.92 = 52,497.79 : x
  2. Step 2: Convert to fraction form
    90,230.83/124,489.92 = 52,497.79/x
  3. Step 3: Cross multiply
    90,230.83x = 124,489.92 × 52,497.79
  4. Step 4: Simplify right side
    90,230.83x = 6,535,445,677.28
  5. Step 5: Solve for x
    x = 6,535,445,677.28/90,230.83
  6. Step 6: Final answer
    x = 72,430.30

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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.