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Finding the Fourth Proportional to 169,490.12, 233,917.11 and 97,870.05

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Solution

The fourth proportional to 169,490.12, 233,917.11 and 97,870.05 is: 135,072.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,490.12 : 233,917.11 = 97,870.05 : x
  2. Step 2: Convert to fraction form
    169,490.12/233,917.11 = 97,870.05/x
  3. Step 3: Cross multiply
    169,490.12x = 233,917.11 × 97,870.05
  4. Step 4: Simplify right side
    169,490.12x = 22,893,479,251.56
  5. Step 5: Solve for x
    x = 22,893,479,251.56/169,490.12
  6. Step 6: Final answer
    x = 135,072.65

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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.