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Finding the Fourth Proportional to 58,793.60, 88,190.40 and 47,129.60

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Solution

The fourth proportional to 58,793.60, 88,190.40 and 47,129.60 is: 70,694.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,793.60 : 88,190.40 = 47,129.60 : x
  2. Step 2: Convert to fraction form
    58,793.60/88,190.40 = 47,129.60/x
  3. Step 3: Cross multiply
    58,793.60x = 88,190.40 × 47,129.60
  4. Step 4: Simplify right side
    58,793.60x = 4,156,378,275.84
  5. Step 5: Solve for x
    x = 4,156,378,275.84/58,793.60
  6. Step 6: Final answer
    x = 70,694.40

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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.