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Finding the Fourth Proportional to 148,901.76, 223,390.26 and 43,720.74

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Solution

The fourth proportional to 148,901.76, 223,390.26 and 43,720.74 is: 65,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,901.76 : 223,390.26 = 43,720.74 : x
  2. Step 2: Convert to fraction form
    148,901.76/223,390.26 = 43,720.74/x
  3. Step 3: Cross multiply
    148,901.76x = 223,390.26 × 43,720.74
  4. Step 4: Simplify right side
    148,901.76x = 9,766,787,475.99
  5. Step 5: Solve for x
    x = 9,766,787,475.99/148,901.76
  6. Step 6: Final answer
    x = 65,592.16

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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.