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Finding the Fourth Proportional to 86,892.21, 119,946.42 and 73,532.88

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Solution

The fourth proportional to 86,892.21, 119,946.42 and 73,532.88 is: 101,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,892.21 : 119,946.42 = 73,532.88 : x
  2. Step 2: Convert to fraction form
    86,892.21/119,946.42 = 73,532.88/x
  3. Step 3: Cross multiply
    86,892.21x = 119,946.42 × 73,532.88
  4. Step 4: Simplify right side
    86,892.21x = 8,820,005,708.29
  5. Step 5: Solve for x
    x = 8,820,005,708.29/86,892.21
  6. Step 6: Final answer
    x = 101,505.14

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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.