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Finding the Fourth Proportional to 96,568.80, 144,847.80 and 30,008.40

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Solution

The fourth proportional to 96,568.80, 144,847.80 and 30,008.40 is: 45,010.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,568.80 : 144,847.80 = 30,008.40 : x
  2. Step 2: Convert to fraction form
    96,568.80/144,847.80 = 30,008.40/x
  3. Step 3: Cross multiply
    96,568.80x = 144,847.80 × 30,008.40
  4. Step 4: Simplify right side
    96,568.80x = 4,346,650,721.52
  5. Step 5: Solve for x
    x = 4,346,650,721.52/96,568.80
  6. Step 6: Final answer
    x = 45,010.92

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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.