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Finding the Fourth Proportional to 127,850.58, 176,436.12 and 71,255.88

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Solution

The fourth proportional to 127,850.58, 176,436.12 and 71,255.88 is: 98,334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,850.58 : 176,436.12 = 71,255.88 : x
  2. Step 2: Convert to fraction form
    127,850.58/176,436.12 = 71,255.88/x
  3. Step 3: Cross multiply
    127,850.58x = 176,436.12 × 71,255.88
  4. Step 4: Simplify right side
    127,850.58x = 12,572,110,994.39
  5. Step 5: Solve for x
    x = 12,572,110,994.39/127,850.58
  6. Step 6: Final answer
    x = 98,334.41

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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.