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Finding the Fourth Proportional to 60,055.54, 89,908.30 and 57,781.06

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Solution

The fourth proportional to 60,055.54, 89,908.30 and 57,781.06 is: 86,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,055.54 : 89,908.30 = 57,781.06 : x
  2. Step 2: Convert to fraction form
    60,055.54/89,908.30 = 57,781.06/x
  3. Step 3: Cross multiply
    60,055.54x = 89,908.30 × 57,781.06
  4. Step 4: Simplify right side
    60,055.54x = 5,194,996,876.80
  5. Step 5: Solve for x
    x = 5,194,996,876.80/60,055.54
  6. Step 6: Final answer
    x = 86,503.21

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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.