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Finding the Fourth Proportional to 143,241.40, 214,959.30 and 93,199.60

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Solution

The fourth proportional to 143,241.40, 214,959.30 and 93,199.60 is: 139,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,241.40 : 214,959.30 = 93,199.60 : x
  2. Step 2: Convert to fraction form
    143,241.40/214,959.30 = 93,199.60/x
  3. Step 3: Cross multiply
    143,241.40x = 214,959.30 × 93,199.60
  4. Step 4: Simplify right side
    143,241.40x = 20,034,120,776.28
  5. Step 5: Solve for x
    x = 20,034,120,776.28/143,241.40
  6. Step 6: Final answer
    x = 139,862.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.