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Finding the Fourth Proportional to 555,399.14, 833,147.31 and 156,043.22

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Solution

The fourth proportional to 555,399.14, 833,147.31 and 156,043.22 is: 234,078.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,399.14 : 833,147.31 = 156,043.22 : x
  2. Step 2: Convert to fraction form
    555,399.14/833,147.31 = 156,043.22/x
  3. Step 3: Cross multiply
    555,399.14x = 833,147.31 × 156,043.22
  4. Step 4: Simplify right side
    555,399.14x = 130,006,988,986.74
  5. Step 5: Solve for x
    x = 130,006,988,986.74/555,399.14
  6. Step 6: Final answer
    x = 234,078.48

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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.