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Finding the Fourth Proportional to 144,073.62, 216,063.70 and 47,985.26

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Solution

The fourth proportional to 144,073.62, 216,063.70 and 47,985.26 is: 71,962.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,073.62 : 216,063.70 = 47,985.26 : x
  2. Step 2: Convert to fraction form
    144,073.62/216,063.70 = 47,985.26/x
  3. Step 3: Cross multiply
    144,073.62x = 216,063.70 × 47,985.26
  4. Step 4: Simplify right side
    144,073.62x = 10,367,872,821.06
  5. Step 5: Solve for x
    x = 10,367,872,821.06/144,073.62
  6. Step 6: Final answer
    x = 71,962.33

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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.