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Finding the Fourth Proportional to 74,503.28, 111,864.28 and 46,542.48

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Solution

The fourth proportional to 74,503.28, 111,864.28 and 46,542.48 is: 69,882.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,503.28 : 111,864.28 = 46,542.48 : x
  2. Step 2: Convert to fraction form
    74,503.28/111,864.28 = 46,542.48/x
  3. Step 3: Cross multiply
    74,503.28x = 111,864.28 × 46,542.48
  4. Step 4: Simplify right side
    74,503.28x = 5,206,441,014.61
  5. Step 5: Solve for x
    x = 5,206,441,014.61/74,503.28
  6. Step 6: Final answer
    x = 69,882.04

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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.