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Finding the Fourth Proportional to 126,642.28, 174,766.71 and 70,053.66

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Solution

The fourth proportional to 126,642.28, 174,766.71 and 70,053.66 is: 96,674.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,642.28 : 174,766.71 = 70,053.66 : x
  2. Step 2: Convert to fraction form
    126,642.28/174,766.71 = 70,053.66/x
  3. Step 3: Cross multiply
    126,642.28x = 174,766.71 × 70,053.66
  4. Step 4: Simplify right side
    126,642.28x = 12,243,046,894.47
  5. Step 5: Solve for x
    x = 12,243,046,894.47/126,642.28
  6. Step 6: Final answer
    x = 96,674.24

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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.