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Finding the Fourth Proportional to 145,901.88, 218,876.24 and 61,662.88

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Solution

The fourth proportional to 145,901.88, 218,876.24 and 61,662.88 is: 92,504.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,901.88 : 218,876.24 = 61,662.88 : x
  2. Step 2: Convert to fraction form
    145,901.88/218,876.24 = 61,662.88/x
  3. Step 3: Cross multiply
    145,901.88x = 218,876.24 × 61,662.88
  4. Step 4: Simplify right side
    145,901.88x = 13,496,539,321.97
  5. Step 5: Solve for x
    x = 13,496,539,321.97/145,901.88
  6. Step 6: Final answer
    x = 92,504.22

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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.