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Finding the Fourth Proportional to 316,158.57, 474,262.59 and 91,522.37

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Solution

The fourth proportional to 316,158.57, 474,262.59 and 91,522.37 is: 137,290.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,158.57 : 474,262.59 = 91,522.37 : x
  2. Step 2: Convert to fraction form
    316,158.57/474,262.59 = 91,522.37/x
  3. Step 3: Cross multiply
    316,158.57x = 474,262.59 × 91,522.37
  4. Step 4: Simplify right side
    316,158.57x = 43,405,636,239.14
  5. Step 5: Solve for x
    x = 43,405,636,239.14/316,158.57
  6. Step 6: Final answer
    x = 137,290.72

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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.