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Finding the Fourth Proportional to 144,462.75, 216,693.46 and 39,281.41

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Solution

The fourth proportional to 144,462.75, 216,693.46 and 39,281.41 is: 58,921.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,462.75 : 216,693.46 = 39,281.41 : x
  2. Step 2: Convert to fraction form
    144,462.75/216,693.46 = 39,281.41/x
  3. Step 3: Cross multiply
    144,462.75x = 216,693.46 × 39,281.41
  4. Step 4: Simplify right side
    144,462.75x = 8,512,024,646.58
  5. Step 5: Solve for x
    x = 8,512,024,646.58/144,462.75
  6. Step 6: Final answer
    x = 58,921.93

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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.