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Finding the Fourth Proportional to 316,497.51, 474,787.96 and 103,190.52

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Solution

The fourth proportional to 316,497.51, 474,787.96 and 103,190.52 is: 154,799.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,497.51 : 474,787.96 = 103,190.52 : x
  2. Step 2: Convert to fraction form
    316,497.51/474,787.96 = 103,190.52/x
  3. Step 3: Cross multiply
    316,497.51x = 474,787.96 × 103,190.52
  4. Step 4: Simplify right side
    316,497.51x = 48,993,615,333.94
  5. Step 5: Solve for x
    x = 48,993,615,333.94/316,497.51
  6. Step 6: Final answer
    x = 154,799.37

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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.