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Finding the Fourth Proportional to 67,097.13, 100,646.13 and 19,712.03

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Solution

The fourth proportional to 67,097.13, 100,646.13 and 19,712.03 is: 29,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,097.13 : 100,646.13 = 19,712.03 : x
  2. Step 2: Convert to fraction form
    67,097.13/100,646.13 = 19,712.03/x
  3. Step 3: Cross multiply
    67,097.13x = 100,646.13 × 19,712.03
  4. Step 4: Simplify right side
    67,097.13x = 1,983,939,926.12
  5. Step 5: Solve for x
    x = 1,983,939,926.12/67,097.13
  6. Step 6: Final answer
    x = 29,568.18

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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.