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Finding the Fourth Proportional to 112,704.60, 169,251.30 and 60,216.60

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Solution

The fourth proportional to 112,704.60, 169,251.30 and 60,216.60 is: 90,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,704.60 : 169,251.30 = 60,216.60 : x
  2. Step 2: Convert to fraction form
    112,704.60/169,251.30 = 60,216.60/x
  3. Step 3: Cross multiply
    112,704.60x = 169,251.30 × 60,216.60
  4. Step 4: Simplify right side
    112,704.60x = 10,191,737,831.58
  5. Step 5: Solve for x
    x = 10,191,737,831.58/112,704.60
  6. Step 6: Final answer
    x = 90,428.77

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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.