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Finding the Fourth Proportional to 107,763, 148,702.29 and 60,020.79

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Solution

The fourth proportional to 107,763, 148,702.29 and 60,020.79 is: 82,822.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,763 : 148,702.29 = 60,020.79 : x
  2. Step 2: Convert to fraction form
    107,763/148,702.29 = 60,020.79/x
  3. Step 3: Cross multiply
    107,763x = 148,702.29 × 60,020.79
  4. Step 4: Simplify right side
    107,763x = 8,925,228,920.61
  5. Step 5: Solve for x
    x = 8,925,228,920.61/107,763
  6. Step 6: Final answer
    x = 82,822.76

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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.