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Finding the Fourth Proportional to 252,644.60, 348,655.89 and 143,742.94

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Solution

The fourth proportional to 252,644.60, 348,655.89 and 143,742.94 is: 198,368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,644.60 : 348,655.89 = 143,742.94 : x
  2. Step 2: Convert to fraction form
    252,644.60/348,655.89 = 143,742.94/x
  3. Step 3: Cross multiply
    252,644.60x = 348,655.89 × 143,742.94
  4. Step 4: Simplify right side
    252,644.60x = 50,116,822,344.31
  5. Step 5: Solve for x
    x = 50,116,822,344.31/252,644.60
  6. Step 6: Final answer
    x = 198,368.86

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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.