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Finding the Fourth Proportional to 125,656.65, 173,446.59 and 80,456.37

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Solution

The fourth proportional to 125,656.65, 173,446.59 and 80,456.37 is: 111,055.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,656.65 : 173,446.59 = 80,456.37 : x
  2. Step 2: Convert to fraction form
    125,656.65/173,446.59 = 80,456.37/x
  3. Step 3: Cross multiply
    125,656.65x = 173,446.59 × 80,456.37
  4. Step 4: Simplify right side
    125,656.65x = 13,954,883,020.28
  5. Step 5: Solve for x
    x = 13,954,883,020.28/125,656.65
  6. Step 6: Final answer
    x = 111,055.67

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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.