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Finding the Fourth Proportional to 318,308.52, 439,263.46 and 175,065.49

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Solution

The fourth proportional to 318,308.52, 439,263.46 and 175,065.49 is: 241,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,308.52 : 439,263.46 = 175,065.49 : x
  2. Step 2: Convert to fraction form
    318,308.52/439,263.46 = 175,065.49/x
  3. Step 3: Cross multiply
    318,308.52x = 439,263.46 × 175,065.49
  4. Step 4: Simplify right side
    318,308.52x = 76,899,871,984.67
  5. Step 5: Solve for x
    x = 76,899,871,984.67/318,308.52
  6. Step 6: Final answer
    x = 241,589.11

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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.