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Finding the Fourth Proportional to 127,892.22, 176,435.22 and 121,963.02

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Solution

The fourth proportional to 127,892.22, 176,435.22 and 121,963.02 is: 168,255.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,892.22 : 176,435.22 = 121,963.02 : x
  2. Step 2: Convert to fraction form
    127,892.22/176,435.22 = 121,963.02/x
  3. Step 3: Cross multiply
    127,892.22x = 176,435.22 × 121,963.02
  4. Step 4: Simplify right side
    127,892.22x = 21,518,572,265.56
  5. Step 5: Solve for x
    x = 21,518,572,265.56/127,892.22
  6. Step 6: Final answer
    x = 168,255.52

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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.