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Finding the Fourth Proportional to 113,914.70, 170,872.05 and 30,808.70

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Solution

The fourth proportional to 113,914.70, 170,872.05 and 30,808.70 is: 46,213.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,914.70 : 170,872.05 = 30,808.70 : x
  2. Step 2: Convert to fraction form
    113,914.70/170,872.05 = 30,808.70/x
  3. Step 3: Cross multiply
    113,914.70x = 170,872.05 × 30,808.70
  4. Step 4: Simplify right side
    113,914.70x = 5,264,345,726.84
  5. Step 5: Solve for x
    x = 5,264,345,726.84/113,914.70
  6. Step 6: Final answer
    x = 46,213.05

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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.