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Finding the Fourth Proportional to 252,279.71, 348,141.54 and 137,559.25

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Solution

The fourth proportional to 252,279.71, 348,141.54 and 137,559.25 is: 189,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,279.71 : 348,141.54 = 137,559.25 : x
  2. Step 2: Convert to fraction form
    252,279.71/348,141.54 = 137,559.25/x
  3. Step 3: Cross multiply
    252,279.71x = 348,141.54 × 137,559.25
  4. Step 4: Simplify right side
    252,279.71x = 47,890,089,136.25
  5. Step 5: Solve for x
    x = 47,890,089,136.25/252,279.71
  6. Step 6: Final answer
    x = 189,829.33

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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.