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Finding the Fourth Proportional to 317,297.85, 475,980.15 and 92,658.91

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Solution

The fourth proportional to 317,297.85, 475,980.15 and 92,658.91 is: 138,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,297.85 : 475,980.15 = 92,658.91 : x
  2. Step 2: Convert to fraction form
    317,297.85/475,980.15 = 92,658.91/x
  3. Step 3: Cross multiply
    317,297.85x = 475,980.15 × 92,658.91
  4. Step 4: Simplify right side
    317,297.85x = 44,103,801,417.34
  5. Step 5: Solve for x
    x = 44,103,801,417.34/317,297.85
  6. Step 6: Final answer
    x = 138,998.11

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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.