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Finding the Fourth Proportional to 86,797,159, 119,783,811.90 and 48,165,991

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Solution

The fourth proportional to 86,797,159, 119,783,811.90 and 48,165,991 is: 66,471,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,797,159 : 119,783,811.90 = 48,165,991 : x
  2. Step 2: Convert to fraction form
    86,797,159/119,783,811.90 = 48,165,991/x
  3. Step 3: Cross multiply
    86,797,159x = 119,783,811.90 × 48,165,991
  4. Step 4: Simplify right side
    86,797,159x = 5,769,506,005,921,093
  5. Step 5: Solve for x
    x = 5,769,506,005,921,093/86,797,159
  6. Step 6: Final answer
    x = 66,471,138.83

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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.