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Finding the Fourth Proportional to 78,618.52, 108,484.14 and 44,630.92

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Solution

The fourth proportional to 78,618.52, 108,484.14 and 44,630.92 is: 61,585.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,618.52 : 108,484.14 = 44,630.92 : x
  2. Step 2: Convert to fraction form
    78,618.52/108,484.14 = 44,630.92/x
  3. Step 3: Cross multiply
    78,618.52x = 108,484.14 × 44,630.92
  4. Step 4: Simplify right side
    78,618.52x = 4,841,746,973.61
  5. Step 5: Solve for x
    x = 4,841,746,973.61/78,618.52
  6. Step 6: Final answer
    x = 61,585.32

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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.