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Finding the Fourth Proportional to 316,292.73, 474,329.75 and 103,005.56

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Solution

The fourth proportional to 316,292.73, 474,329.75 and 103,005.56 is: 154,472.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,292.73 : 474,329.75 = 103,005.56 : x
  2. Step 2: Convert to fraction form
    316,292.73/474,329.75 = 103,005.56/x
  3. Step 3: Cross multiply
    316,292.73x = 474,329.75 × 103,005.56
  4. Step 4: Simplify right side
    316,292.73x = 48,858,598,636.73
  5. Step 5: Solve for x
    x = 48,858,598,636.73/316,292.73
  6. Step 6: Final answer
    x = 154,472.72

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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.