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Finding the Fourth Proportional to 267,211, 368,743.90 and 152,487.56

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Solution

The fourth proportional to 267,211, 368,743.90 and 152,487.56 is: 210,428.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,211 : 368,743.90 = 152,487.56 : x
  2. Step 2: Convert to fraction form
    267,211/368,743.90 = 152,487.56/x
  3. Step 3: Cross multiply
    267,211x = 368,743.90 × 152,487.56
  4. Step 4: Simplify right side
    267,211x = 56,228,857,575.88
  5. Step 5: Solve for x
    x = 56,228,857,575.88/267,211
  6. Step 6: Final answer
    x = 210,428.68

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1.5x scale

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.