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Finding the Fourth Proportional to 243,713.69, 365,578.03 and 66,224.47

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Solution

The fourth proportional to 243,713.69, 365,578.03 and 66,224.47 is: 99,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,713.69 : 365,578.03 = 66,224.47 : x
  2. Step 2: Convert to fraction form
    243,713.69/365,578.03 = 66,224.47/x
  3. Step 3: Cross multiply
    243,713.69x = 365,578.03 × 66,224.47
  4. Step 4: Simplify right side
    243,713.69x = 24,210,211,280.39
  5. Step 5: Solve for x
    x = 24,210,211,280.39/243,713.69
  6. Step 6: Final answer
    x = 99,338.74

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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.