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Finding the Fourth Proportional to 233,431.40, 349,743.90 and 108,516.20

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Solution

The fourth proportional to 233,431.40, 349,743.90 and 108,516.20 is: 162,586.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,431.40 : 349,743.90 = 108,516.20 : x
  2. Step 2: Convert to fraction form
    233,431.40/349,743.90 = 108,516.20/x
  3. Step 3: Cross multiply
    233,431.40x = 349,743.90 × 108,516.20
  4. Step 4: Simplify right side
    233,431.40x = 37,952,879,001.18
  5. Step 5: Solve for x
    x = 37,952,879,001.18/233,431.40
  6. Step 6: Final answer
    x = 162,586.86

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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.