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Finding the Fourth Proportional to 144,628.60, 216,922.90 and 44,857.40

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Solution

The fourth proportional to 144,628.60, 216,922.90 and 44,857.40 is: 67,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,628.60 : 216,922.90 = 44,857.40 : x
  2. Step 2: Convert to fraction form
    144,628.60/216,922.90 = 44,857.40/x
  3. Step 3: Cross multiply
    144,628.60x = 216,922.90 × 44,857.40
  4. Step 4: Simplify right side
    144,628.60x = 9,730,597,294.46
  5. Step 5: Solve for x
    x = 9,730,597,294.46/144,628.60
  6. Step 6: Final answer
    x = 67,279.90

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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.