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Finding the Fourth Proportional to 318,197.39, 439,114.01 and 174,966.65

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Solution

The fourth proportional to 318,197.39, 439,114.01 and 174,966.65 is: 241,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,197.39 : 439,114.01 = 174,966.65 : x
  2. Step 2: Convert to fraction form
    318,197.39/439,114.01 = 174,966.65/x
  3. Step 3: Cross multiply
    318,197.39x = 439,114.01 × 174,966.65
  4. Step 4: Simplify right side
    318,197.39x = 76,830,306,422.93
  5. Step 5: Solve for x
    x = 76,830,306,422.93/318,197.39
  6. Step 6: Final answer
    x = 241,454.86

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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.