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Finding the Fourth Proportional to 547,038.11, 820,622.69 and 167,909.19

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Solution

The fourth proportional to 547,038.11, 820,622.69 and 167,909.19 is: 251,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,038.11 : 820,622.69 = 167,909.19 : x
  2. Step 2: Convert to fraction form
    547,038.11/820,622.69 = 167,909.19/x
  3. Step 3: Cross multiply
    547,038.11x = 820,622.69 × 167,909.19
  4. Step 4: Simplify right side
    547,038.11x = 137,790,091,173.52
  5. Step 5: Solve for x
    x = 137,790,091,173.52/547,038.11
  6. Step 6: Final answer
    x = 251,883.90

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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.