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Finding the Fourth Proportional to 126,193.68, 174,141 and 69,603.60

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Solution

The fourth proportional to 126,193.68, 174,141 and 69,603.60 is: 96,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,193.68 : 174,141 = 69,603.60 : x
  2. Step 2: Convert to fraction form
    126,193.68/174,141 = 69,603.60/x
  3. Step 3: Cross multiply
    126,193.68x = 174,141 × 69,603.60
  4. Step 4: Simplify right side
    126,193.68x = 12,120,840,507.60
  5. Step 5: Solve for x
    x = 12,120,840,507.60/126,193.68
  6. Step 6: Final answer
    x = 96,049.51

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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.