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Finding the Fourth Proportional to 452,773.85, 679,258.78 and 137,254.55

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Solution

The fourth proportional to 452,773.85, 679,258.78 and 137,254.55 is: 205,911.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,773.85 : 679,258.78 = 137,254.55 : x
  2. Step 2: Convert to fraction form
    452,773.85/679,258.78 = 137,254.55/x
  3. Step 3: Cross multiply
    452,773.85x = 679,258.78 × 137,254.55
  4. Step 4: Simplify right side
    452,773.85x = 93,231,354,443.02
  5. Step 5: Solve for x
    x = 93,231,354,443.02/452,773.85
  6. Step 6: Final answer
    x = 205,911.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.