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Finding the Fourth Proportional to 199,807.20, 299,672.40 and 59,570.40

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Solution

The fourth proportional to 199,807.20, 299,672.40 and 59,570.40 is: 89,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,807.20 : 299,672.40 = 59,570.40 : x
  2. Step 2: Convert to fraction form
    199,807.20/299,672.40 = 59,570.40/x
  3. Step 3: Cross multiply
    199,807.20x = 299,672.40 × 59,570.40
  4. Step 4: Simplify right side
    199,807.20x = 17,851,604,736.96
  5. Step 5: Solve for x
    x = 17,851,604,736.96/199,807.20
  6. Step 6: Final answer
    x = 89,344.15

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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.