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Finding the Fourth Proportional to 69,117.91, 103,693.31 and 22,370.78

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Solution

The fourth proportional to 69,117.91, 103,693.31 and 22,370.78 is: 33,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,117.91 : 103,693.31 = 22,370.78 : x
  2. Step 2: Convert to fraction form
    69,117.91/103,693.31 = 22,370.78/x
  3. Step 3: Cross multiply
    69,117.91x = 103,693.31 × 22,370.78
  4. Step 4: Simplify right side
    69,117.91x = 2,319,700,225.48
  5. Step 5: Solve for x
    x = 2,319,700,225.48/69,117.91
  6. Step 6: Final answer
    x = 33,561.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.