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Finding the Fourth Proportional to 58,921.80, 88,382.70 and 52,470.60

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Solution

The fourth proportional to 58,921.80, 88,382.70 and 52,470.60 is: 78,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,921.80 : 88,382.70 = 52,470.60 : x
  2. Step 2: Convert to fraction form
    58,921.80/88,382.70 = 52,470.60/x
  3. Step 3: Cross multiply
    58,921.80x = 88,382.70 × 52,470.60
  4. Step 4: Simplify right side
    58,921.80x = 4,637,493,298.62
  5. Step 5: Solve for x
    x = 4,637,493,298.62/58,921.80
  6. Step 6: Final answer
    x = 78,705.90

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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.