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Finding the Fourth Proportional to 101,770, 140,442.60 and 62,026

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Solution

The fourth proportional to 101,770, 140,442.60 and 62,026 is: 85,595.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,770 : 140,442.60 = 62,026 : x
  2. Step 2: Convert to fraction form
    101,770/140,442.60 = 62,026/x
  3. Step 3: Cross multiply
    101,770x = 140,442.60 × 62,026
  4. Step 4: Simplify right side
    101,770x = 8,711,092,707.60
  5. Step 5: Solve for x
    x = 8,711,092,707.60/101,770
  6. Step 6: Final answer
    x = 85,595.88

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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.