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Finding the Fourth Proportional to 146,770.78, 202,543.80 and 83,108.68

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Solution

The fourth proportional to 146,770.78, 202,543.80 and 83,108.68 is: 114,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,770.78 : 202,543.80 = 83,108.68 : x
  2. Step 2: Convert to fraction form
    146,770.78/202,543.80 = 83,108.68/x
  3. Step 3: Cross multiply
    146,770.78x = 202,543.80 × 83,108.68
  4. Step 4: Simplify right side
    146,770.78x = 16,833,147,860.18
  5. Step 5: Solve for x
    x = 16,833,147,860.18/146,770.78
  6. Step 6: Final answer
    x = 114,690.05

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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.