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Finding the Fourth Proportional to 92,389.79, 127,497.92 and 49,948.31

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Solution

The fourth proportional to 92,389.79, 127,497.92 and 49,948.31 is: 68,928.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,389.79 : 127,497.92 = 49,948.31 : x
  2. Step 2: Convert to fraction form
    92,389.79/127,497.92 = 49,948.31/x
  3. Step 3: Cross multiply
    92,389.79x = 127,497.92 × 49,948.31
  4. Step 4: Simplify right side
    92,389.79x = 6,368,304,745.28
  5. Step 5: Solve for x
    x = 6,368,304,745.28/92,389.79
  6. Step 6: Final answer
    x = 68,928.67

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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.