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Finding the Fourth Proportional to 316,589.29, 474,843.83 and 88,905.58

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Solution

The fourth proportional to 316,589.29, 474,843.83 and 88,905.58 is: 133,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,589.29 : 474,843.83 = 88,905.58 : x
  2. Step 2: Convert to fraction form
    316,589.29/474,843.83 = 88,905.58/x
  3. Step 3: Cross multiply
    316,589.29x = 474,843.83 × 88,905.58
  4. Step 4: Simplify right side
    316,589.29x = 42,216,263,296.82
  5. Step 5: Solve for x
    x = 42,216,263,296.82/316,589.29
  6. Step 6: Final answer
    x = 133,347.10

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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.