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Finding the Fourth Proportional to 84,834.40, 127,251.60 and 49,356.40

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Solution

The fourth proportional to 84,834.40, 127,251.60 and 49,356.40 is: 74,034.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,834.40 : 127,251.60 = 49,356.40 : x
  2. Step 2: Convert to fraction form
    84,834.40/127,251.60 = 49,356.40/x
  3. Step 3: Cross multiply
    84,834.40x = 127,251.60 × 49,356.40
  4. Step 4: Simplify right side
    84,834.40x = 6,280,680,870.24
  5. Step 5: Solve for x
    x = 6,280,680,870.24/84,834.40
  6. Step 6: Final answer
    x = 74,034.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.