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Finding the Fourth Proportional to 113,115.80, 169,673.70 and 103,266.20

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Solution

The fourth proportional to 113,115.80, 169,673.70 and 103,266.20 is: 154,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,115.80 : 169,673.70 = 103,266.20 : x
  2. Step 2: Convert to fraction form
    113,115.80/169,673.70 = 103,266.20/x
  3. Step 3: Cross multiply
    113,115.80x = 169,673.70 × 103,266.20
  4. Step 4: Simplify right side
    113,115.80x = 17,521,558,238.94
  5. Step 5: Solve for x
    x = 17,521,558,238.94/113,115.80
  6. Step 6: Final answer
    x = 154,899.30

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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.