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Finding the Fourth Proportional to 267,647.96, 369,248.78 and 154,448.84

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Solution

The fourth proportional to 267,647.96, 369,248.78 and 154,448.84 is: 213,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,647.96 : 369,248.78 = 154,448.84 : x
  2. Step 2: Convert to fraction form
    267,647.96/369,248.78 = 154,448.84/x
  3. Step 3: Cross multiply
    267,647.96x = 369,248.78 × 154,448.84
  4. Step 4: Simplify right side
    267,647.96x = 57,030,045,742.42
  5. Step 5: Solve for x
    x = 57,030,045,742.42/267,647.96
  6. Step 6: Final answer
    x = 213,078.57

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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.