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Finding the Fourth Proportional to 318,188.96, 439,112.08 and 174,959.92

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Solution

The fourth proportional to 318,188.96, 439,112.08 and 174,959.92 is: 241,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,188.96 : 439,112.08 = 174,959.92 : x
  2. Step 2: Convert to fraction form
    318,188.96/439,112.08 = 174,959.92/x
  3. Step 3: Cross multiply
    318,188.96x = 439,112.08 × 174,959.92
  4. Step 4: Simplify right side
    318,188.96x = 76,827,014,387.83
  5. Step 5: Solve for x
    x = 76,827,014,387.83/318,188.96
  6. Step 6: Final answer
    x = 241,450.91

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1.5x scale

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.