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Finding the Fourth Proportional to 113,881.80, 170,822.70 and 107,758.20

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Solution

The fourth proportional to 113,881.80, 170,822.70 and 107,758.20 is: 161,637.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,881.80 : 170,822.70 = 107,758.20 : x
  2. Step 2: Convert to fraction form
    113,881.80/170,822.70 = 107,758.20/x
  3. Step 3: Cross multiply
    113,881.80x = 170,822.70 × 107,758.20
  4. Step 4: Simplify right side
    113,881.80x = 18,407,546,671.14
  5. Step 5: Solve for x
    x = 18,407,546,671.14/113,881.80
  6. Step 6: Final answer
    x = 161,637.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.