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Finding the Fourth Proportional to 339,265.20, 508,897.80 and 152,641.20

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Solution

The fourth proportional to 339,265.20, 508,897.80 and 152,641.20 is: 228,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,265.20 : 508,897.80 = 152,641.20 : x
  2. Step 2: Convert to fraction form
    339,265.20/508,897.80 = 152,641.20/x
  3. Step 3: Cross multiply
    339,265.20x = 508,897.80 × 152,641.20
  4. Step 4: Simplify right side
    339,265.20x = 77,678,770,869.36
  5. Step 5: Solve for x
    x = 77,678,770,869.36/339,265.20
  6. Step 6: Final answer
    x = 228,961.80

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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.