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Finding the Fourth Proportional to 68,882.16, 103,322.16 and 37,700.40

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Solution

The fourth proportional to 68,882.16, 103,322.16 and 37,700.40 is: 56,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,882.16 : 103,322.16 = 37,700.40 : x
  2. Step 2: Convert to fraction form
    68,882.16/103,322.16 = 37,700.40/x
  3. Step 3: Cross multiply
    68,882.16x = 103,322.16 × 37,700.40
  4. Step 4: Simplify right side
    68,882.16x = 3,895,286,760.86
  5. Step 5: Solve for x
    x = 3,895,286,760.86/68,882.16
  6. Step 6: Final answer
    x = 56,550.01

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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.