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Finding the Fourth Proportional to 92,490, 127,635.24 and 50,047.56

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Solution

The fourth proportional to 92,490, 127,635.24 and 50,047.56 is: 69,065.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,490 : 127,635.24 = 50,047.56 : x
  2. Step 2: Convert to fraction form
    92,490/127,635.24 = 50,047.56/x
  3. Step 3: Cross multiply
    92,490x = 127,635.24 × 50,047.56
  4. Step 4: Simplify right side
    92,490x = 6,387,832,332.01
  5. Step 5: Solve for x
    x = 6,387,832,332.01/92,490
  6. Step 6: Final answer
    x = 69,065.11

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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.