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Finding the Fourth Proportional to 86,592.38, 119,580.01 and 81,874.87

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Solution

The fourth proportional to 86,592.38, 119,580.01 and 81,874.87 is: 113,065.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592.38 : 119,580.01 = 81,874.87 : x
  2. Step 2: Convert to fraction form
    86,592.38/119,580.01 = 81,874.87/x
  3. Step 3: Cross multiply
    86,592.38x = 119,580.01 × 81,874.87
  4. Step 4: Simplify right side
    86,592.38x = 9,790,596,970.76
  5. Step 5: Solve for x
    x = 9,790,596,970.76/86,592.38
  6. Step 6: Final answer
    x = 113,065.34

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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.