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Finding the Fourth Proportional to 144,708.60, 216,890.10 and 60,468.60

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Solution

The fourth proportional to 144,708.60, 216,890.10 and 60,468.60 is: 90,630.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,708.60 : 216,890.10 = 60,468.60 : x
  2. Step 2: Convert to fraction form
    144,708.60/216,890.10 = 60,468.60/x
  3. Step 3: Cross multiply
    144,708.60x = 216,890.10 × 60,468.60
  4. Step 4: Simplify right side
    144,708.60x = 13,115,040,700.86
  5. Step 5: Solve for x
    x = 13,115,040,700.86/144,708.60
  6. Step 6: Final answer
    x = 90,630.69

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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.