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Finding the Fourth Proportional to 145,553.52, 218,383.68 and 61,334.88

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Solution

The fourth proportional to 145,553.52, 218,383.68 and 61,334.88 is: 92,024.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,553.52 : 218,383.68 = 61,334.88 : x
  2. Step 2: Convert to fraction form
    145,553.52/218,383.68 = 61,334.88/x
  3. Step 3: Cross multiply
    145,553.52x = 218,383.68 × 61,334.88
  4. Step 4: Simplify right side
    145,553.52x = 13,394,536,806.76
  5. Step 5: Solve for x
    x = 13,394,536,806.76/145,553.52
  6. Step 6: Final answer
    x = 92,024.82

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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.