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Finding the Fourth Proportional to 127,608.54, 176,096.79 and 71,018.70

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Solution

The fourth proportional to 127,608.54, 176,096.79 and 71,018.70 is: 98,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,608.54 : 176,096.79 = 71,018.70 : x
  2. Step 2: Convert to fraction form
    127,608.54/176,096.79 = 71,018.70/x
  3. Step 3: Cross multiply
    127,608.54x = 176,096.79 × 71,018.70
  4. Step 4: Simplify right side
    127,608.54x = 12,506,165,099.97
  5. Step 5: Solve for x
    x = 12,506,165,099.97/127,608.54
  6. Step 6: Final answer
    x = 98,004.14

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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.