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Finding the Fourth Proportional to 368,026.83, 551,814.15 and 143,125.06

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Solution

The fourth proportional to 368,026.83, 551,814.15 and 143,125.06 is: 214,599.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,026.83 : 551,814.15 = 143,125.06 : x
  2. Step 2: Convert to fraction form
    368,026.83/551,814.15 = 143,125.06/x
  3. Step 3: Cross multiply
    368,026.83x = 551,814.15 × 143,125.06
  4. Step 4: Simplify right side
    368,026.83x = 78,978,433,327.60
  5. Step 5: Solve for x
    x = 78,978,433,327.60/368,026.83
  6. Step 6: Final answer
    x = 214,599.66

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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.