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Finding the Fourth Proportional to 125,445.62, 173,258.62 and 82,616.56

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Solution

The fourth proportional to 125,445.62, 173,258.62 and 82,616.56 is: 114,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,445.62 : 173,258.62 = 82,616.56 : x
  2. Step 2: Convert to fraction form
    125,445.62/173,258.62 = 82,616.56/x
  3. Step 3: Cross multiply
    125,445.62x = 173,258.62 × 82,616.56
  4. Step 4: Simplify right side
    125,445.62x = 14,314,030,308.45
  5. Step 5: Solve for x
    x = 14,314,030,308.45/125,445.62
  6. Step 6: Final answer
    x = 114,105.47

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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.