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Finding the Fourth Proportional to 228,001.98, 342,008.79 and 108,030.78

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Solution

The fourth proportional to 228,001.98, 342,008.79 and 108,030.78 is: 162,048.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,001.98 : 342,008.79 = 108,030.78 : x
  2. Step 2: Convert to fraction form
    228,001.98/342,008.79 = 108,030.78/x
  3. Step 3: Cross multiply
    228,001.98x = 342,008.79 × 108,030.78
  4. Step 4: Simplify right side
    228,001.98x = 36,947,476,350.56
  5. Step 5: Solve for x
    x = 36,947,476,350.56/228,001.98
  6. Step 6: Final answer
    x = 162,048.93

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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.