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Finding the Fourth Proportional to 86,800.91, 119,794.19 and 52,811.81

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Solution

The fourth proportional to 86,800.91, 119,794.19 and 52,811.81 is: 72,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.91 : 119,794.19 = 52,811.81 : x
  2. Step 2: Convert to fraction form
    86,800.91/119,794.19 = 52,811.81/x
  3. Step 3: Cross multiply
    86,800.91x = 119,794.19 × 52,811.81
  4. Step 4: Simplify right side
    86,800.91x = 6,326,548,001.38
  5. Step 5: Solve for x
    x = 6,326,548,001.38/86,800.91
  6. Step 6: Final answer
    x = 72,885.73

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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.