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Finding the Fourth Proportional to 92,390.29, 127,498.61 and 49,948.81

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Solution

The fourth proportional to 92,390.29, 127,498.61 and 49,948.81 is: 68,929.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,390.29 : 127,498.61 = 49,948.81 : x
  2. Step 2: Convert to fraction form
    92,390.29/127,498.61 = 49,948.81/x
  3. Step 3: Cross multiply
    92,390.29x = 127,498.61 × 49,948.81
  4. Step 4: Simplify right side
    92,390.29x = 6,368,402,958.92
  5. Step 5: Solve for x
    x = 6,368,402,958.92/92,390.29
  6. Step 6: Final answer
    x = 68,929.36

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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.