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Finding the Fourth Proportional to 126,689.14, 174,829.47 and 69,327.85

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Solution

The fourth proportional to 126,689.14, 174,829.47 and 69,327.85 is: 95,671.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,689.14 : 174,829.47 = 69,327.85 : x
  2. Step 2: Convert to fraction form
    126,689.14/174,829.47 = 69,327.85/x
  3. Step 3: Cross multiply
    126,689.14x = 174,829.47 × 69,327.85
  4. Step 4: Simplify right side
    126,689.14x = 12,120,551,271.74
  5. Step 5: Solve for x
    x = 12,120,551,271.74/126,689.14
  6. Step 6: Final answer
    x = 95,671.59

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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.