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Finding the Fourth Proportional to 62,290.88, 93,451.20 and 20,171.01

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Solution

The fourth proportional to 62,290.88, 93,451.20 and 20,171.01 is: 30,261.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,290.88 : 93,451.20 = 20,171.01 : x
  2. Step 2: Convert to fraction form
    62,290.88/93,451.20 = 20,171.01/x
  3. Step 3: Cross multiply
    62,290.88x = 93,451.20 × 20,171.01
  4. Step 4: Simplify right side
    62,290.88x = 1,885,005,089.71
  5. Step 5: Solve for x
    x = 1,885,005,089.71/62,290.88
  6. Step 6: Final answer
    x = 30,261.33

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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.