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Finding the Fourth Proportional to 92,390.40, 127,498.91 and 49,948.97

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Solution

The fourth proportional to 92,390.40, 127,498.91 and 49,948.97 is: 68,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,390.40 : 127,498.91 = 49,948.97 : x
  2. Step 2: Convert to fraction form
    92,390.40/127,498.91 = 49,948.97/x
  3. Step 3: Cross multiply
    92,390.40x = 127,498.91 × 49,948.97
  4. Step 4: Simplify right side
    92,390.40x = 6,368,438,343.38
  5. Step 5: Solve for x
    x = 6,368,438,343.38/92,390.40
  6. Step 6: Final answer
    x = 68,929.65

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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.