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Finding the Fourth Proportional to 70,167, 96,908.94 and 54,442.20

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Solution

The fourth proportional to 70,167, 96,908.94 and 54,442.20 is: 75,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,167 : 96,908.94 = 54,442.20 : x
  2. Step 2: Convert to fraction form
    70,167/96,908.94 = 54,442.20/x
  3. Step 3: Cross multiply
    70,167x = 96,908.94 × 54,442.20
  4. Step 4: Simplify right side
    70,167x = 5,275,935,893.27
  5. Step 5: Solve for x
    x = 5,275,935,893.27/70,167
  6. Step 6: Final answer
    x = 75,191.13

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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.