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Finding the Fourth Proportional to 115,909.77, 173,864.65 and 63,290.55

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Solution

The fourth proportional to 115,909.77, 173,864.65 and 63,290.55 is: 94,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909.77 : 173,864.65 = 63,290.55 : x
  2. Step 2: Convert to fraction form
    115,909.77/173,864.65 = 63,290.55/x
  3. Step 3: Cross multiply
    115,909.77x = 173,864.65 × 63,290.55
  4. Step 4: Simplify right side
    115,909.77x = 11,003,988,454.73
  5. Step 5: Solve for x
    x = 11,003,988,454.73/115,909.77
  6. Step 6: Final answer
    x = 94,935.82

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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.