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Finding the Fourth Proportional to 165,603.10, 248,469.45 and 60,432.70

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Solution

The fourth proportional to 165,603.10, 248,469.45 and 60,432.70 is: 90,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,603.10 : 248,469.45 = 60,432.70 : x
  2. Step 2: Convert to fraction form
    165,603.10/248,469.45 = 60,432.70/x
  3. Step 3: Cross multiply
    165,603.10x = 248,469.45 × 60,432.70
  4. Step 4: Simplify right side
    165,603.10x = 15,015,679,731.02
  5. Step 5: Solve for x
    x = 15,015,679,731.02/165,603.10
  6. Step 6: Final answer
    x = 90,672.70

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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.