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Finding the Fourth Proportional to 52,959.60, 79,727.94 and 45,727.92

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Solution

The fourth proportional to 52,959.60, 79,727.94 and 45,727.92 is: 68,841.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,959.60 : 79,727.94 = 45,727.92 : x
  2. Step 2: Convert to fraction form
    52,959.60/79,727.94 = 45,727.92/x
  3. Step 3: Cross multiply
    52,959.60x = 79,727.94 × 45,727.92
  4. Step 4: Simplify right side
    52,959.60x = 3,645,792,862.08
  5. Step 5: Solve for x
    x = 3,645,792,862.08/52,959.60
  6. Step 6: Final answer
    x = 68,841.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.