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Finding the Fourth Proportional to 96,988.89, 133,843.37 and 54,547.42

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Solution

The fourth proportional to 96,988.89, 133,843.37 and 54,547.42 is: 75,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,988.89 : 133,843.37 = 54,547.42 : x
  2. Step 2: Convert to fraction form
    96,988.89/133,843.37 = 54,547.42/x
  3. Step 3: Cross multiply
    96,988.89x = 133,843.37 × 54,547.42
  4. Step 4: Simplify right side
    96,988.89x = 7,300,810,517.61
  5. Step 5: Solve for x
    x = 7,300,810,517.61/96,988.89
  6. Step 6: Final answer
    x = 75,274.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.