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Finding the Fourth Proportional to 266,425.68, 399,627.54 and 148,021.50

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Solution

The fourth proportional to 266,425.68, 399,627.54 and 148,021.50 is: 222,026.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,425.68 : 399,627.54 = 148,021.50 : x
  2. Step 2: Convert to fraction form
    266,425.68/399,627.54 = 148,021.50/x
  3. Step 3: Cross multiply
    266,425.68x = 399,627.54 × 148,021.50
  4. Step 4: Simplify right side
    266,425.68x = 59,153,467,912.11
  5. Step 5: Solve for x
    x = 59,153,467,912.11/266,425.68
  6. Step 6: Final answer
    x = 222,026.15

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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.