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Finding the Fourth Proportional to 266,436.88, 367,671.96 and 145,582.31

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Solution

The fourth proportional to 266,436.88, 367,671.96 and 145,582.31 is: 200,897.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,436.88 : 367,671.96 = 145,582.31 : x
  2. Step 2: Convert to fraction form
    266,436.88/367,671.96 = 145,582.31/x
  3. Step 3: Cross multiply
    266,436.88x = 367,671.96 × 145,582.31
  4. Step 4: Simplify right side
    266,436.88x = 53,526,534,178.21
  5. Step 5: Solve for x
    x = 53,526,534,178.21/266,436.88
  6. Step 6: Final answer
    x = 200,897.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.