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Finding the Fourth Proportional to 536,915.66, 805,354.85 and 137,559.74

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Solution

The fourth proportional to 536,915.66, 805,354.85 and 137,559.74 is: 206,334.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,915.66 : 805,354.85 = 137,559.74 : x
  2. Step 2: Convert to fraction form
    536,915.66/805,354.85 = 137,559.74/x
  3. Step 3: Cross multiply
    536,915.66x = 805,354.85 × 137,559.74
  4. Step 4: Simplify right side
    536,915.66x = 110,784,403,773.74
  5. Step 5: Solve for x
    x = 110,784,403,773.74/536,915.66
  6. Step 6: Final answer
    x = 206,334.83

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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.