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Finding the Fourth Proportional to 125,693.56, 173,454.78 and 69,103.72

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Solution

The fourth proportional to 125,693.56, 173,454.78 and 69,103.72 is: 95,361.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,693.56 : 173,454.78 = 69,103.72 : x
  2. Step 2: Convert to fraction form
    125,693.56/173,454.78 = 69,103.72/x
  3. Step 3: Cross multiply
    125,693.56x = 173,454.78 × 69,103.72
  4. Step 4: Simplify right side
    125,693.56x = 11,986,370,549.78
  5. Step 5: Solve for x
    x = 11,986,370,549.78/125,693.56
  6. Step 6: Final answer
    x = 95,361.85

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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.