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Finding the Fourth Proportional to 136,052.60, 187,744.54 and 75,621.16

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Solution

The fourth proportional to 136,052.60, 187,744.54 and 75,621.16 is: 104,352.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,052.60 : 187,744.54 = 75,621.16 : x
  2. Step 2: Convert to fraction form
    136,052.60/187,744.54 = 75,621.16/x
  3. Step 3: Cross multiply
    136,052.60x = 187,744.54 × 75,621.16
  4. Step 4: Simplify right side
    136,052.60x = 14,197,459,898.47
  5. Step 5: Solve for x
    x = 14,197,459,898.47/136,052.60
  6. Step 6: Final answer
    x = 104,352.73

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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.