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Finding the Fourth Proportional to 86,797,160, 119,783,813.28 and 48,165,992

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Solution

The fourth proportional to 86,797,160, 119,783,813.28 and 48,165,992 is: 66,471,140.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,797,160 : 119,783,813.28 = 48,165,992 : x
  2. Step 2: Convert to fraction form
    86,797,160/119,783,813.28 = 48,165,992/x
  3. Step 3: Cross multiply
    86,797,160x = 119,783,813.28 × 48,165,992
  4. Step 4: Simplify right side
    86,797,160x = 5,769,506,192,173,974
  5. Step 5: Solve for x
    x = 5,769,506,192,173,974/86,797,160
  6. Step 6: Final answer
    x = 66,471,140.21

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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.