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Finding the Fourth Proportional to 127,855.56, 176,444.82 and 71,263.56

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Solution

The fourth proportional to 127,855.56, 176,444.82 and 71,263.56 is: 98,346.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.56 : 176,444.82 = 71,263.56 : x
  2. Step 2: Convert to fraction form
    127,855.56/176,444.82 = 71,263.56/x
  3. Step 3: Cross multiply
    127,855.56x = 176,444.82 × 71,263.56
  4. Step 4: Simplify right side
    127,855.56x = 12,574,086,016.76
  5. Step 5: Solve for x
    x = 12,574,086,016.76/127,855.56
  6. Step 6: Final answer
    x = 98,346.02

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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.