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Finding the Fourth Proportional to 125,818.75, 173,631.09 and 69,231.34

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Solution

The fourth proportional to 125,818.75, 173,631.09 and 69,231.34 is: 95,539.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,818.75 : 173,631.09 = 69,231.34 : x
  2. Step 2: Convert to fraction form
    125,818.75/173,631.09 = 69,231.34/x
  3. Step 3: Cross multiply
    125,818.75x = 173,631.09 × 69,231.34
  4. Step 4: Simplify right side
    125,818.75x = 12,020,713,026.36
  5. Step 5: Solve for x
    x = 12,020,713,026.36/125,818.75
  6. Step 6: Final answer
    x = 95,539.92

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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.