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Finding the Fourth Proportional to 86,718.96, 119,665.56 and 52,722.74

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Solution

The fourth proportional to 86,718.96, 119,665.56 and 52,722.74 is: 72,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,718.96 : 119,665.56 = 52,722.74 : x
  2. Step 2: Convert to fraction form
    86,718.96/119,665.56 = 52,722.74/x
  3. Step 3: Cross multiply
    86,718.96x = 119,665.56 × 52,722.74
  4. Step 4: Simplify right side
    86,718.96x = 6,309,096,206.83
  5. Step 5: Solve for x
    x = 6,309,096,206.83/86,718.96
  6. Step 6: Final answer
    x = 72,753.37

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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.