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Finding the Fourth Proportional to 86,876.50, 119,888.76 and 49,150.75

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Solution

The fourth proportional to 86,876.50, 119,888.76 and 49,150.75 is: 67,827.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,876.50 : 119,888.76 = 49,150.75 : x
  2. Step 2: Convert to fraction form
    86,876.50/119,888.76 = 49,150.75/x
  3. Step 3: Cross multiply
    86,876.50x = 119,888.76 × 49,150.75
  4. Step 4: Simplify right side
    86,876.50x = 5,892,622,470.57
  5. Step 5: Solve for x
    x = 5,892,622,470.57/86,876.50
  6. Step 6: Final answer
    x = 67,827.58

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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.