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Finding the Fourth Proportional to 69,937.60, 105,165.60 and 58,532.80

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Solution

The fourth proportional to 69,937.60, 105,165.60 and 58,532.80 is: 88,016.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,937.60 : 105,165.60 = 58,532.80 : x
  2. Step 2: Convert to fraction form
    69,937.60/105,165.60 = 58,532.80/x
  3. Step 3: Cross multiply
    69,937.60x = 105,165.60 × 58,532.80
  4. Step 4: Simplify right side
    69,937.60x = 6,155,637,031.68
  5. Step 5: Solve for x
    x = 6,155,637,031.68/69,937.60
  6. Step 6: Final answer
    x = 88,016.13

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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.