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Finding the Fourth Proportional to 96,882.20, 145,323.30 and 84,829.40

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Solution

The fourth proportional to 96,882.20, 145,323.30 and 84,829.40 is: 127,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,882.20 : 145,323.30 = 84,829.40 : x
  2. Step 2: Convert to fraction form
    96,882.20/145,323.30 = 84,829.40/x
  3. Step 3: Cross multiply
    96,882.20x = 145,323.30 × 84,829.40
  4. Step 4: Simplify right side
    96,882.20x = 12,327,688,345.02
  5. Step 5: Solve for x
    x = 12,327,688,345.02/96,882.20
  6. Step 6: Final answer
    x = 127,244.10

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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.