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Finding the Fourth Proportional to 59,551.74, 89,322.08 and 20,109.20

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Solution

The fourth proportional to 59,551.74, 89,322.08 and 20,109.20 is: 30,161.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,551.74 : 89,322.08 = 20,109.20 : x
  2. Step 2: Convert to fraction form
    59,551.74/89,322.08 = 20,109.20/x
  3. Step 3: Cross multiply
    59,551.74x = 89,322.08 × 20,109.20
  4. Step 4: Simplify right side
    59,551.74x = 1,796,195,023.98
  5. Step 5: Solve for x
    x = 1,796,195,023.98/59,551.74
  6. Step 6: Final answer
    x = 30,161.92

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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.