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Finding the Fourth Proportional to 127,718.73, 176,224.88 and 74,000.48

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Solution

The fourth proportional to 127,718.73, 176,224.88 and 74,000.48 is: 102,105.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,718.73 : 176,224.88 = 74,000.48 : x
  2. Step 2: Convert to fraction form
    127,718.73/176,224.88 = 74,000.48/x
  3. Step 3: Cross multiply
    127,718.73x = 176,224.88 × 74,000.48
  4. Step 4: Simplify right side
    127,718.73x = 13,040,724,456.82
  5. Step 5: Solve for x
    x = 13,040,724,456.82/127,718.73
  6. Step 6: Final answer
    x = 102,105.03

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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.