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Finding the Fourth Proportional to 316,266.16, 474,398.65 and 103,033.82

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Solution

The fourth proportional to 316,266.16, 474,398.65 and 103,033.82 is: 154,550.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,266.16 : 474,398.65 = 103,033.82 : x
  2. Step 2: Convert to fraction form
    316,266.16/474,398.65 = 103,033.82/x
  3. Step 3: Cross multiply
    316,266.16x = 474,398.65 × 103,033.82
  4. Step 4: Simplify right side
    316,266.16x = 48,879,105,112.34
  5. Step 5: Solve for x
    x = 48,879,105,112.34/316,266.16
  6. Step 6: Final answer
    x = 154,550.54

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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.