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Finding the Fourth Proportional to 127,264.16, 175,566.96 and 81,925.88

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Solution

The fourth proportional to 127,264.16, 175,566.96 and 81,925.88 is: 113,020.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,264.16 : 175,566.96 = 81,925.88 : x
  2. Step 2: Convert to fraction form
    127,264.16/175,566.96 = 81,925.88/x
  3. Step 3: Cross multiply
    127,264.16x = 175,566.96 × 81,925.88
  4. Step 4: Simplify right side
    127,264.16x = 14,383,477,696.92
  5. Step 5: Solve for x
    x = 14,383,477,696.92/127,264.16
  6. Step 6: Final answer
    x = 113,020.65

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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.