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Finding the Fourth Proportional to 126,393.66, 174,408.39 and 69,801.66

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Solution

The fourth proportional to 126,393.66, 174,408.39 and 69,801.66 is: 96,318.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,393.66 : 174,408.39 = 69,801.66 : x
  2. Step 2: Convert to fraction form
    126,393.66/174,408.39 = 69,801.66/x
  3. Step 3: Cross multiply
    126,393.66x = 174,408.39 × 69,801.66
  4. Step 4: Simplify right side
    126,393.66x = 12,173,995,139.93
  5. Step 5: Solve for x
    x = 12,173,995,139.93/126,393.66
  6. Step 6: Final answer
    x = 96,318.08

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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.