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Finding the Fourth Proportional to 92,389.48, 127,497.45 and 49,948

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Solution

The fourth proportional to 92,389.48, 127,497.45 and 49,948 is: 68,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,389.48 : 127,497.45 = 49,948 : x
  2. Step 2: Convert to fraction form
    92,389.48/127,497.45 = 49,948/x
  3. Step 3: Cross multiply
    92,389.48x = 127,497.45 × 49,948
  4. Step 4: Simplify right side
    92,389.48x = 6,368,242,632.60
  5. Step 5: Solve for x
    x = 6,368,242,632.60/92,389.48
  6. Step 6: Final answer
    x = 68,928.22

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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.