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Finding the Fourth Proportional to 127,182.91, 175,476.42 and 81,887.11

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Solution

The fourth proportional to 127,182.91, 175,476.42 and 81,887.11 is: 112,981.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,182.91 : 175,476.42 = 81,887.11 : x
  2. Step 2: Convert to fraction form
    127,182.91/175,476.42 = 81,887.11/x
  3. Step 3: Cross multiply
    127,182.91x = 175,476.42 × 81,887.11
  4. Step 4: Simplify right side
    127,182.91x = 14,369,256,906.95
  5. Step 5: Solve for x
    x = 14,369,256,906.95/127,182.91
  6. Step 6: Final answer
    x = 112,981.04

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1.5x scale

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.