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Finding the Fourth Proportional to 189,767.68, 284,621.28 and 63,396.88

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Solution

The fourth proportional to 189,767.68, 284,621.28 and 63,396.88 is: 95,085.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,767.68 : 284,621.28 = 63,396.88 : x
  2. Step 2: Convert to fraction form
    189,767.68/284,621.28 = 63,396.88/x
  3. Step 3: Cross multiply
    189,767.68x = 284,621.28 × 63,396.88
  4. Step 4: Simplify right side
    189,767.68x = 18,044,101,133.61
  5. Step 5: Solve for x
    x = 18,044,101,133.61/189,767.68
  6. Step 6: Final answer
    x = 95,085.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.