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Finding the Fourth Proportional to 228,670.17, 342,822.09 and 108,666.90

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Solution

The fourth proportional to 228,670.17, 342,822.09 and 108,666.90 is: 162,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,670.17 : 342,822.09 = 108,666.90 : x
  2. Step 2: Convert to fraction form
    228,670.17/342,822.09 = 108,666.90/x
  3. Step 3: Cross multiply
    228,670.17x = 342,822.09 × 108,666.90
  4. Step 4: Simplify right side
    228,670.17x = 37,253,413,771.82
  5. Step 5: Solve for x
    x = 37,253,413,771.82/228,670.17
  6. Step 6: Final answer
    x = 162,913.31

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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.