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Finding the Fourth Proportional to 127,592.70, 176,076.54 and 70,230.78

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Solution

The fourth proportional to 127,592.70, 176,076.54 and 70,230.78 is: 96,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,592.70 : 176,076.54 = 70,230.78 : x
  2. Step 2: Convert to fraction form
    127,592.70/176,076.54 = 70,230.78/x
  3. Step 3: Cross multiply
    127,592.70x = 176,076.54 × 70,230.78
  4. Step 4: Simplify right side
    127,592.70x = 12,365,992,743.90
  5. Step 5: Solve for x
    x = 12,365,992,743.90/127,592.70
  6. Step 6: Final answer
    x = 96,917.71

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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.