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Finding the Fourth Proportional to 59,810.20, 89,788.20 and 30,212.80

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Solution

The fourth proportional to 59,810.20, 89,788.20 and 30,212.80 is: 45,356.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,810.20 : 89,788.20 = 30,212.80 : x
  2. Step 2: Convert to fraction form
    59,810.20/89,788.20 = 30,212.80/x
  3. Step 3: Cross multiply
    59,810.20x = 89,788.20 × 30,212.80
  4. Step 4: Simplify right side
    59,810.20x = 2,712,752,928.96
  5. Step 5: Solve for x
    x = 2,712,752,928.96/59,810.20
  6. Step 6: Final answer
    x = 45,356.03

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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.