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Finding the Fourth Proportional to 86,532.71, 119,416.70 and 50,748.53

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Solution

The fourth proportional to 86,532.71, 119,416.70 and 50,748.53 is: 70,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,532.71 : 119,416.70 = 50,748.53 : x
  2. Step 2: Convert to fraction form
    86,532.71/119,416.70 = 50,748.53/x
  3. Step 3: Cross multiply
    86,532.71x = 119,416.70 × 50,748.53
  4. Step 4: Simplify right side
    86,532.71x = 6,060,221,728.71
  5. Step 5: Solve for x
    x = 6,060,221,728.71/86,532.71
  6. Step 6: Final answer
    x = 70,033.88

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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.