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Finding the Fourth Proportional to 98,883.72, 148,260.02 and 54,531.72

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Solution

The fourth proportional to 98,883.72, 148,260.02 and 54,531.72 is: 81,761.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,883.72 : 148,260.02 = 54,531.72 : x
  2. Step 2: Convert to fraction form
    98,883.72/148,260.02 = 54,531.72/x
  3. Step 3: Cross multiply
    98,883.72x = 148,260.02 × 54,531.72
  4. Step 4: Simplify right side
    98,883.72x = 8,084,873,897.83
  5. Step 5: Solve for x
    x = 8,084,873,897.83/98,883.72
  6. Step 6: Final answer
    x = 81,761.43

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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.