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Finding the Fourth Proportional to 252,645.60, 348,657.27 and 143,743.94

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Solution

The fourth proportional to 252,645.60, 348,657.27 and 143,743.94 is: 198,370.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,645.60 : 348,657.27 = 143,743.94 : x
  2. Step 2: Convert to fraction form
    252,645.60/348,657.27 = 143,743.94/x
  3. Step 3: Cross multiply
    252,645.60x = 348,657.27 × 143,743.94
  4. Step 4: Simplify right side
    252,645.60x = 50,117,369,699.44
  5. Step 5: Solve for x
    x = 50,117,369,699.44/252,645.60
  6. Step 6: Final answer
    x = 198,370.25

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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.