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Finding the Fourth Proportional to 125,334.31, 173,000.07 and 80,622.31

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Solution

The fourth proportional to 125,334.31, 173,000.07 and 80,622.31 is: 111,283.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,334.31 : 173,000.07 = 80,622.31 : x
  2. Step 2: Convert to fraction form
    125,334.31/173,000.07 = 80,622.31/x
  3. Step 3: Cross multiply
    125,334.31x = 173,000.07 × 80,622.31
  4. Step 4: Simplify right side
    125,334.31x = 13,947,664,005.45
  5. Step 5: Solve for x
    x = 13,947,664,005.45/125,334.31
  6. Step 6: Final answer
    x = 111,283.69

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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.