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Finding the Fourth Proportional to 252,265.80, 348,129.53 and 137,543.50

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Solution

The fourth proportional to 252,265.80, 348,129.53 and 137,543.50 is: 189,811.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,265.80 : 348,129.53 = 137,543.50 : x
  2. Step 2: Convert to fraction form
    252,265.80/348,129.53 = 137,543.50/x
  3. Step 3: Cross multiply
    252,265.80x = 348,129.53 × 137,543.50
  4. Step 4: Simplify right side
    252,265.80x = 47,882,954,009.56
  5. Step 5: Solve for x
    x = 47,882,954,009.56/252,265.80
  6. Step 6: Final answer
    x = 189,811.52

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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.