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Finding the Fourth Proportional to 96,819.20, 130,291.20 and 96,819.20

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Solution

The fourth proportional to 96,819.20, 130,291.20 and 96,819.20 is: 130,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,819.20 : 130,291.20 = 96,819.20 : x
  2. Step 2: Convert to fraction form
    96,819.20/130,291.20 = 96,819.20/x
  3. Step 3: Cross multiply
    96,819.20x = 130,291.20 × 96,819.20
  4. Step 4: Simplify right side
    96,819.20x = 12,614,689,751.04
  5. Step 5: Solve for x
    x = 12,614,689,751.04/96,819.20
  6. Step 6: Final answer
    x = 130,291.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.