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Finding the Fourth Proportional to 126,952.52, 190,490.94 and 89,751.65

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Solution

The fourth proportional to 126,952.52, 190,490.94 and 89,751.65 is: 134,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,952.52 : 190,490.94 = 89,751.65 : x
  2. Step 2: Convert to fraction form
    126,952.52/190,490.94 = 89,751.65/x
  3. Step 3: Cross multiply
    126,952.52x = 190,490.94 × 89,751.65
  4. Step 4: Simplify right side
    126,952.52x = 17,096,875,222.60
  5. Step 5: Solve for x
    x = 17,096,875,222.60/126,952.52
  6. Step 6: Final answer
    x = 134,671.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.