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Finding the Fourth Proportional to 101,760.66, 152,673.18 and 45,648.90

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Solution

The fourth proportional to 101,760.66, 152,673.18 and 45,648.90 is: 68,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,760.66 : 152,673.18 = 45,648.90 : x
  2. Step 2: Convert to fraction form
    101,760.66/152,673.18 = 45,648.90/x
  3. Step 3: Cross multiply
    101,760.66x = 152,673.18 × 45,648.90
  4. Step 4: Simplify right side
    101,760.66x = 6,969,362,726.50
  5. Step 5: Solve for x
    x = 6,969,362,726.50/101,760.66
  6. Step 6: Final answer
    x = 68,487.79

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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.