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Finding the Fourth Proportional to 73,868.10, 110,672.55 and 60,648.90

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Solution

The fourth proportional to 73,868.10, 110,672.55 and 60,648.90 is: 90,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,868.10 : 110,672.55 = 60,648.90 : x
  2. Step 2: Convert to fraction form
    73,868.10/110,672.55 = 60,648.90/x
  3. Step 3: Cross multiply
    73,868.10x = 110,672.55 × 60,648.90
  4. Step 4: Simplify right side
    73,868.10x = 6,712,168,417.70
  5. Step 5: Solve for x
    x = 6,712,168,417.70/73,868.10
  6. Step 6: Final answer
    x = 90,866.94

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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.