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Finding the Fourth Proportional to 318,151.89, 439,045.66 and 174,910.68

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Solution

The fourth proportional to 318,151.89, 439,045.66 and 174,910.68 is: 241,374.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,151.89 : 439,045.66 = 174,910.68 : x
  2. Step 2: Convert to fraction form
    318,151.89/439,045.66 = 174,910.68/x
  3. Step 3: Cross multiply
    318,151.89x = 439,045.66 × 174,910.68
  4. Step 4: Simplify right side
    318,151.89x = 76,793,774,941.65
  5. Step 5: Solve for x
    x = 76,793,774,941.65/318,151.89
  6. Step 6: Final answer
    x = 241,374.57

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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.