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Finding the Fourth Proportional to 96,539.60, 144,820.20 and 29,979.20

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Solution

The fourth proportional to 96,539.60, 144,820.20 and 29,979.20 is: 44,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,539.60 : 144,820.20 = 29,979.20 : x
  2. Step 2: Convert to fraction form
    96,539.60/144,820.20 = 29,979.20/x
  3. Step 3: Cross multiply
    96,539.60x = 144,820.20 × 29,979.20
  4. Step 4: Simplify right side
    96,539.60x = 4,341,593,739.84
  5. Step 5: Solve for x
    x = 4,341,593,739.84/96,539.60
  6. Step 6: Final answer
    x = 44,972.15

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1.5x scale

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.