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Finding the Fourth Proportional to 252,463.69, 348,420.69 and 143,602.12

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Solution

The fourth proportional to 252,463.69, 348,420.69 and 143,602.12 is: 198,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,463.69 : 348,420.69 = 143,602.12 : x
  2. Step 2: Convert to fraction form
    252,463.69/348,420.69 = 143,602.12/x
  3. Step 3: Cross multiply
    252,463.69x = 348,420.69 × 143,602.12
  4. Step 4: Simplify right side
    252,463.69x = 50,033,948,211.52
  5. Step 5: Solve for x
    x = 50,033,948,211.52/252,463.69
  6. Step 6: Final answer
    x = 198,182.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.