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Finding the Fourth Proportional to 199,412.80, 299,016.60 and 59,153.20

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Solution

The fourth proportional to 199,412.80, 299,016.60 and 59,153.20 is: 88,699.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,412.80 : 299,016.60 = 59,153.20 : x
  2. Step 2: Convert to fraction form
    199,412.80/299,016.60 = 59,153.20/x
  3. Step 3: Cross multiply
    199,412.80x = 299,016.60 × 59,153.20
  4. Step 4: Simplify right side
    199,412.80x = 17,687,788,743.12
  5. Step 5: Solve for x
    x = 17,687,788,743.12/199,412.80
  6. Step 6: Final answer
    x = 88,699.37

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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.