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Finding the Fourth Proportional to 92,957.60, 128,281.13 and 52,679.04

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Solution

The fourth proportional to 92,957.60, 128,281.13 and 52,679.04 is: 72,696.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,957.60 : 128,281.13 = 52,679.04 : x
  2. Step 2: Convert to fraction form
    92,957.60/128,281.13 = 52,679.04/x
  3. Step 3: Cross multiply
    92,957.60x = 128,281.13 × 52,679.04
  4. Step 4: Simplify right side
    92,957.60x = 6,757,726,231.61
  5. Step 5: Solve for x
    x = 6,757,726,231.61/92,957.60
  6. Step 6: Final answer
    x = 72,696.86

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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.