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Finding the Fourth Proportional to 120,752.40, 181,129.23 and 70,797.46

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Solution

The fourth proportional to 120,752.40, 181,129.23 and 70,797.46 is: 106,196.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,752.40 : 181,129.23 = 70,797.46 : x
  2. Step 2: Convert to fraction form
    120,752.40/181,129.23 = 70,797.46/x
  3. Step 3: Cross multiply
    120,752.40x = 181,129.23 × 70,797.46
  4. Step 4: Simplify right side
    120,752.40x = 12,823,489,768.01
  5. Step 5: Solve for x
    x = 12,823,489,768.01/120,752.40
  6. Step 6: Final answer
    x = 106,196.56

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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.