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Finding the Fourth Proportional to 99,497.40, 148,805.46 and 88,481.40

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Solution

The fourth proportional to 99,497.40, 148,805.46 and 88,481.40 is: 132,330.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,497.40 : 148,805.46 = 88,481.40 : x
  2. Step 2: Convert to fraction form
    99,497.40/148,805.46 = 88,481.40/x
  3. Step 3: Cross multiply
    99,497.40x = 148,805.46 × 88,481.40
  4. Step 4: Simplify right side
    99,497.40x = 13,166,515,428.44
  5. Step 5: Solve for x
    x = 13,166,515,428.44/99,497.40
  6. Step 6: Final answer
    x = 132,330.25

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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.