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Finding the Fourth Proportional to 109,568.40, 164,482.20 and 62,221.20

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Solution

The fourth proportional to 109,568.40, 164,482.20 and 62,221.20 is: 93,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,568.40 : 164,482.20 = 62,221.20 : x
  2. Step 2: Convert to fraction form
    109,568.40/164,482.20 = 62,221.20/x
  3. Step 3: Cross multiply
    109,568.40x = 164,482.20 × 62,221.20
  4. Step 4: Simplify right side
    109,568.40x = 10,234,279,862.64
  5. Step 5: Solve for x
    x = 10,234,279,862.64/109,568.40
  6. Step 6: Final answer
    x = 93,405.40

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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.