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Finding the Fourth Proportional to 106,381.68, 146,815.50 and 58,644.36

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Solution

The fourth proportional to 106,381.68, 146,815.50 and 58,644.36 is: 80,934.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,381.68 : 146,815.50 = 58,644.36 : x
  2. Step 2: Convert to fraction form
    106,381.68/146,815.50 = 58,644.36/x
  3. Step 3: Cross multiply
    106,381.68x = 146,815.50 × 58,644.36
  4. Step 4: Simplify right side
    106,381.68x = 8,609,901,035.58
  5. Step 5: Solve for x
    x = 8,609,901,035.58/106,381.68
  6. Step 6: Final answer
    x = 80,934.06

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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.