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Finding the Fourth Proportional to 75,803.85, 104,552.78 and 55,654.29

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Solution

The fourth proportional to 75,803.85, 104,552.78 and 55,654.29 is: 76,761.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,803.85 : 104,552.78 = 55,654.29 : x
  2. Step 2: Convert to fraction form
    75,803.85/104,552.78 = 55,654.29/x
  3. Step 3: Cross multiply
    75,803.85x = 104,552.78 × 55,654.29
  4. Step 4: Simplify right side
    75,803.85x = 5,818,810,460.15
  5. Step 5: Solve for x
    x = 5,818,810,460.15/75,803.85
  6. Step 6: Final answer
    x = 76,761.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.