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Finding the Fourth Proportional to 86,794.59, 119,775.45 and 50,987.86

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Solution

The fourth proportional to 86,794.59, 119,775.45 and 50,987.86 is: 70,362.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,794.59 : 119,775.45 = 50,987.86 : x
  2. Step 2: Convert to fraction form
    86,794.59/119,775.45 = 50,987.86/x
  3. Step 3: Cross multiply
    86,794.59x = 119,775.45 × 50,987.86
  4. Step 4: Simplify right side
    86,794.59x = 6,107,093,876.04
  5. Step 5: Solve for x
    x = 6,107,093,876.04/86,794.59
  6. Step 6: Final answer
    x = 70,362.61

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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.