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Finding the Fourth Proportional to 96,570.80, 144,856.20 and 68,577.20

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Solution

The fourth proportional to 96,570.80, 144,856.20 and 68,577.20 is: 102,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,570.80 : 144,856.20 = 68,577.20 : x
  2. Step 2: Convert to fraction form
    96,570.80/144,856.20 = 68,577.20/x
  3. Step 3: Cross multiply
    96,570.80x = 144,856.20 × 68,577.20
  4. Step 4: Simplify right side
    96,570.80x = 9,933,832,598.64
  5. Step 5: Solve for x
    x = 9,933,832,598.64/96,570.80
  6. Step 6: Final answer
    x = 102,865.80

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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.