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Finding the Fourth Proportional to 365,118.20, 547,729.14 and 112,419.70

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Solution

The fourth proportional to 365,118.20, 547,729.14 and 112,419.70 is: 168,645.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,118.20 : 547,729.14 = 112,419.70 : x
  2. Step 2: Convert to fraction form
    365,118.20/547,729.14 = 112,419.70/x
  3. Step 3: Cross multiply
    365,118.20x = 547,729.14 × 112,419.70
  4. Step 4: Simplify right side
    365,118.20x = 61,575,544,230.74
  5. Step 5: Solve for x
    x = 61,575,544,230.74/365,118.20
  6. Step 6: Final answer
    x = 168,645.51

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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.