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Finding the Fourth Proportional to 144,437.85, 216,708.05 and 64,468.53

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Solution

The fourth proportional to 144,437.85, 216,708.05 and 64,468.53 is: 96,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,437.85 : 216,708.05 = 64,468.53 : x
  2. Step 2: Convert to fraction form
    144,437.85/216,708.05 = 64,468.53/x
  3. Step 3: Cross multiply
    144,437.85x = 216,708.05 × 64,468.53
  4. Step 4: Simplify right side
    144,437.85x = 13,970,849,100.32
  5. Step 5: Solve for x
    x = 13,970,849,100.32/144,437.85
  6. Step 6: Final answer
    x = 96,725.68

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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.