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Finding the Fourth Proportional to 127,877.88, 176,467.98 and 74,159.46

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Solution

The fourth proportional to 127,877.88, 176,467.98 and 74,159.46 is: 102,338.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,877.88 : 176,467.98 = 74,159.46 : x
  2. Step 2: Convert to fraction form
    127,877.88/176,467.98 = 74,159.46/x
  3. Step 3: Cross multiply
    127,877.88x = 176,467.98 × 74,159.46
  4. Step 4: Simplify right side
    127,877.88x = 13,086,770,104.09
  5. Step 5: Solve for x
    x = 13,086,770,104.09/127,877.88
  6. Step 6: Final answer
    x = 102,338.03

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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.