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Finding the Fourth Proportional to 60,100.80, 89,978.40 and 36,772.80

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Solution

The fourth proportional to 60,100.80, 89,978.40 and 36,772.80 is: 55,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,100.80 : 89,978.40 = 36,772.80 : x
  2. Step 2: Convert to fraction form
    60,100.80/89,978.40 = 36,772.80/x
  3. Step 3: Cross multiply
    60,100.80x = 89,978.40 × 36,772.80
  4. Step 4: Simplify right side
    60,100.80x = 3,308,757,707.52
  5. Step 5: Solve for x
    x = 3,308,757,707.52/60,100.80
  6. Step 6: Final answer
    x = 55,053.47

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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.