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Finding the Fourth Proportional to 147,121.98, 203,050.98 and 83,446.26

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Solution

The fourth proportional to 147,121.98, 203,050.98 and 83,446.26 is: 115,168.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,121.98 : 203,050.98 = 83,446.26 : x
  2. Step 2: Convert to fraction form
    147,121.98/203,050.98 = 83,446.26/x
  3. Step 3: Cross multiply
    147,121.98x = 203,050.98 × 83,446.26
  4. Step 4: Simplify right side
    147,121.98x = 16,943,844,870.33
  5. Step 5: Solve for x
    x = 16,943,844,870.33/147,121.98
  6. Step 6: Final answer
    x = 115,168.68

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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.