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Finding the Fourth Proportional to 59,868.20, 89,875.20 and 30,270.80

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Solution

The fourth proportional to 59,868.20, 89,875.20 and 30,270.80 is: 45,443.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,868.20 : 89,875.20 = 30,270.80 : x
  2. Step 2: Convert to fraction form
    59,868.20/89,875.20 = 30,270.80/x
  3. Step 3: Cross multiply
    59,868.20x = 89,875.20 × 30,270.80
  4. Step 4: Simplify right side
    59,868.20x = 2,720,594,204.16
  5. Step 5: Solve for x
    x = 2,720,594,204.16/59,868.20
  6. Step 6: Final answer
    x = 45,443.06

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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.