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Finding the Fourth Proportional to 368,171.90, 552,264.74 and 115,446.84

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Solution

The fourth proportional to 368,171.90, 552,264.74 and 115,446.84 is: 173,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,171.90 : 552,264.74 = 115,446.84 : x
  2. Step 2: Convert to fraction form
    368,171.90/552,264.74 = 115,446.84/x
  3. Step 3: Cross multiply
    368,171.90x = 552,264.74 × 115,446.84
  4. Step 4: Simplify right side
    368,171.90x = 63,757,218,499.19
  5. Step 5: Solve for x
    x = 63,757,218,499.19/368,171.90
  6. Step 6: Final answer
    x = 173,172.42

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1.5x scale

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.