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Finding the Fourth Proportional to 96,759.70, 145,139.55 and 73,140.10

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Solution

The fourth proportional to 96,759.70, 145,139.55 and 73,140.10 is: 109,710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,759.70 : 145,139.55 = 73,140.10 : x
  2. Step 2: Convert to fraction form
    96,759.70/145,139.55 = 73,140.10/x
  3. Step 3: Cross multiply
    96,759.70x = 145,139.55 × 73,140.10
  4. Step 4: Simplify right side
    96,759.70x = 10,615,521,200.96
  5. Step 5: Solve for x
    x = 10,615,521,200.96/96,759.70
  6. Step 6: Final answer
    x = 109,710.15

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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.