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Finding the Fourth Proportional to 316,266.20, 474,398.71 and 103,033.85

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Solution

The fourth proportional to 316,266.20, 474,398.71 and 103,033.85 is: 154,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,266.20 : 474,398.71 = 103,033.85 : x
  2. Step 2: Convert to fraction form
    316,266.20/474,398.71 = 103,033.85/x
  3. Step 3: Cross multiply
    316,266.20x = 474,398.71 × 103,033.85
  4. Step 4: Simplify right side
    316,266.20x = 48,879,125,526.33
  5. Step 5: Solve for x
    x = 48,879,125,526.33/316,266.20
  6. Step 6: Final answer
    x = 154,550.58

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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.