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Finding the Fourth Proportional to 83,547.70, 125,321.55 and 63,864.70

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Solution

The fourth proportional to 83,547.70, 125,321.55 and 63,864.70 is: 95,797.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,547.70 : 125,321.55 = 63,864.70 : x
  2. Step 2: Convert to fraction form
    83,547.70/125,321.55 = 63,864.70/x
  3. Step 3: Cross multiply
    83,547.70x = 125,321.55 × 63,864.70
  4. Step 4: Simplify right side
    83,547.70x = 8,003,623,194.29
  5. Step 5: Solve for x
    x = 8,003,623,194.29/83,547.70
  6. Step 6: Final answer
    x = 95,797.05

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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.