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Finding the Fourth Proportional to 126,842.93, 175,035.76 and 69,470.82

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Solution

The fourth proportional to 126,842.93, 175,035.76 and 69,470.82 is: 95,865.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,842.93 : 175,035.76 = 69,470.82 : x
  2. Step 2: Convert to fraction form
    126,842.93/175,035.76 = 69,470.82/x
  3. Step 3: Cross multiply
    126,842.93x = 175,035.76 × 69,470.82
  4. Step 4: Simplify right side
    126,842.93x = 12,159,877,602.85
  5. Step 5: Solve for x
    x = 12,159,877,602.85/126,842.93
  6. Step 6: Final answer
    x = 95,865.63

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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.