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Finding the Fourth Proportional to 71,622.77, 107,477.90 and 36,565.16

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Solution

The fourth proportional to 71,622.77, 107,477.90 and 36,565.16 is: 54,870.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,622.77 : 107,477.90 = 36,565.16 : x
  2. Step 2: Convert to fraction form
    71,622.77/107,477.90 = 36,565.16/x
  3. Step 3: Cross multiply
    71,622.77x = 107,477.90 × 36,565.16
  4. Step 4: Simplify right side
    71,622.77x = 3,929,945,889.75
  5. Step 5: Solve for x
    x = 3,929,945,889.75/71,622.77
  6. Step 6: Final answer
    x = 54,870.07

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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.