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Finding the Fourth Proportional to 127,877.71, 176,470.88 and 74,194.15

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Solution

The fourth proportional to 127,877.71, 176,470.88 and 74,194.15 is: 102,387.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,877.71 : 176,470.88 = 74,194.15 : x
  2. Step 2: Convert to fraction form
    127,877.71/176,470.88 = 74,194.15/x
  3. Step 3: Cross multiply
    127,877.71x = 176,470.88 × 74,194.15
  4. Step 4: Simplify right side
    127,877.71x = 13,093,106,941.35
  5. Step 5: Solve for x
    x = 13,093,106,941.35/127,877.71
  6. Step 6: Final answer
    x = 102,387.72

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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.