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Finding the Fourth Proportional to 536,648.12, 804,963.98 and 137,285.52

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Solution

The fourth proportional to 536,648.12, 804,963.98 and 137,285.52 is: 205,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,648.12 : 804,963.98 = 137,285.52 : x
  2. Step 2: Convert to fraction form
    536,648.12/804,963.98 = 137,285.52/x
  3. Step 3: Cross multiply
    536,648.12x = 804,963.98 × 137,285.52
  4. Step 4: Simplify right side
    536,648.12x = 110,509,898,575.57
  5. Step 5: Solve for x
    x = 110,509,898,575.57/536,648.12
  6. Step 6: Final answer
    x = 205,926.18

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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.