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Finding the Fourth Proportional to 547,814.70, 821,866.05 and 173,837.10

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Solution

The fourth proportional to 547,814.70, 821,866.05 and 173,837.10 is: 260,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,814.70 : 821,866.05 = 173,837.10 : x
  2. Step 2: Convert to fraction form
    547,814.70/821,866.05 = 173,837.10/x
  3. Step 3: Cross multiply
    547,814.70x = 821,866.05 × 173,837.10
  4. Step 4: Simplify right side
    547,814.70x = 142,870,810,720.46
  5. Step 5: Solve for x
    x = 142,870,810,720.46/547,814.70
  6. Step 6: Final answer
    x = 260,801.35

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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.