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Finding the Fourth Proportional to 110,839.40, 166,025.10 and 73,417.40

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Solution

The fourth proportional to 110,839.40, 166,025.10 and 73,417.40 is: 109,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,839.40 : 166,025.10 = 73,417.40 : x
  2. Step 2: Convert to fraction form
    110,839.40/166,025.10 = 73,417.40/x
  3. Step 3: Cross multiply
    110,839.40x = 166,025.10 × 73,417.40
  4. Step 4: Simplify right side
    110,839.40x = 12,189,131,176.74
  5. Step 5: Solve for x
    x = 12,189,131,176.74/110,839.40
  6. Step 6: Final answer
    x = 109,971.10

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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.