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Finding the Fourth Proportional to 318,229.98, 439,160.52 and 174,991.07

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Solution

The fourth proportional to 318,229.98, 439,160.52 and 174,991.07 is: 241,489.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,229.98 : 439,160.52 = 174,991.07 : x
  2. Step 2: Convert to fraction form
    318,229.98/439,160.52 = 174,991.07/x
  3. Step 3: Cross multiply
    318,229.98x = 439,160.52 × 174,991.07
  4. Step 4: Simplify right side
    318,229.98x = 76,849,167,100.75
  5. Step 5: Solve for x
    x = 76,849,167,100.75/318,229.98
  6. Step 6: Final answer
    x = 241,489.40

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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.