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Finding the Fourth Proportional to 84,763.92, 127,140.24 and 34,831.08

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Solution

The fourth proportional to 84,763.92, 127,140.24 and 34,831.08 is: 52,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,763.92 : 127,140.24 = 34,831.08 : x
  2. Step 2: Convert to fraction form
    84,763.92/127,140.24 = 34,831.08/x
  3. Step 3: Cross multiply
    84,763.92x = 127,140.24 × 34,831.08
  4. Step 4: Simplify right side
    84,763.92x = 4,428,431,870.66
  5. Step 5: Solve for x
    x = 4,428,431,870.66/84,763.92
  6. Step 6: Final answer
    x = 52,244.30

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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.