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Finding the Fourth Proportional to 92,772.38, 128,026.13 and 50,330.91

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Solution

The fourth proportional to 92,772.38, 128,026.13 and 50,330.91 is: 69,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,772.38 : 128,026.13 = 50,330.91 : x
  2. Step 2: Convert to fraction form
    92,772.38/128,026.13 = 50,330.91/x
  3. Step 3: Cross multiply
    92,772.38x = 128,026.13 × 50,330.91
  4. Step 4: Simplify right side
    92,772.38x = 6,443,671,375.02
  5. Step 5: Solve for x
    x = 6,443,671,375.02/92,772.38
  6. Step 6: Final answer
    x = 69,456.79

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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.