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Finding the Fourth Proportional to 144,355.98, 216,531.60 and 43,154.28

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Solution

The fourth proportional to 144,355.98, 216,531.60 and 43,154.28 is: 64,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,355.98 : 216,531.60 = 43,154.28 : x
  2. Step 2: Convert to fraction form
    144,355.98/216,531.60 = 43,154.28/x
  3. Step 3: Cross multiply
    144,355.98x = 216,531.60 × 43,154.28
  4. Step 4: Simplify right side
    144,355.98x = 9,344,265,295.25
  5. Step 5: Solve for x
    x = 9,344,265,295.25/144,355.98
  6. Step 6: Final answer
    x = 64,730.71

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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.