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Finding the Fourth Proportional to 60,765.48, 90,456.90 and 57,902.76

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Solution

The fourth proportional to 60,765.48, 90,456.90 and 57,902.76 is: 86,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,765.48 : 90,456.90 = 57,902.76 : x
  2. Step 2: Convert to fraction form
    60,765.48/90,456.90 = 57,902.76/x
  3. Step 3: Cross multiply
    60,765.48x = 90,456.90 × 57,902.76
  4. Step 4: Simplify right side
    60,765.48x = 5,237,704,171.04
  5. Step 5: Solve for x
    x = 5,237,704,171.04/60,765.48
  6. Step 6: Final answer
    x = 86,195.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.