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Finding the Fourth Proportional to 75,461.40, 113,192.10 and 40,469.40

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Solution

The fourth proportional to 75,461.40, 113,192.10 and 40,469.40 is: 60,704.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,461.40 : 113,192.10 = 40,469.40 : x
  2. Step 2: Convert to fraction form
    75,461.40/113,192.10 = 40,469.40/x
  3. Step 3: Cross multiply
    75,461.40x = 113,192.10 × 40,469.40
  4. Step 4: Simplify right side
    75,461.40x = 4,580,816,371.74
  5. Step 5: Solve for x
    x = 4,580,816,371.74/75,461.40
  6. Step 6: Final answer
    x = 60,704.10

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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.