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Finding the Fourth Proportional to 99,794.52, 137,746.95 and 61,565.95

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Solution

The fourth proportional to 99,794.52, 137,746.95 and 61,565.95 is: 84,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794.52 : 137,746.95 = 61,565.95 : x
  2. Step 2: Convert to fraction form
    99,794.52/137,746.95 = 61,565.95/x
  3. Step 3: Cross multiply
    99,794.52x = 137,746.95 × 61,565.95
  4. Step 4: Simplify right side
    99,794.52x = 8,480,521,836.35
  5. Step 5: Solve for x
    x = 8,480,521,836.35/99,794.52
  6. Step 6: Final answer
    x = 84,979.83

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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.