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Finding the Fourth Proportional to 318,235.67, 439,148.89 and 174,992.03

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Solution

The fourth proportional to 318,235.67, 439,148.89 and 174,992.03 is: 241,480.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,235.67 : 439,148.89 = 174,992.03 : x
  2. Step 2: Convert to fraction form
    318,235.67/439,148.89 = 174,992.03/x
  3. Step 3: Cross multiply
    318,235.67x = 439,148.89 × 174,992.03
  4. Step 4: Simplify right side
    318,235.67x = 76,847,555,733.35
  5. Step 5: Solve for x
    x = 76,847,555,733.35/318,235.67
  6. Step 6: Final answer
    x = 241,480.02

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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.