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Finding the Fourth Proportional to 74,192.28, 102,384.99 and 40,658.28

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Solution

The fourth proportional to 74,192.28, 102,384.99 and 40,658.28 is: 56,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,192.28 : 102,384.99 = 40,658.28 : x
  2. Step 2: Convert to fraction form
    74,192.28/102,384.99 = 40,658.28/x
  3. Step 3: Cross multiply
    74,192.28x = 102,384.99 × 40,658.28
  4. Step 4: Simplify right side
    74,192.28x = 4,162,797,591.22
  5. Step 5: Solve for x
    x = 4,162,797,591.22/74,192.28
  6. Step 6: Final answer
    x = 56,108.23

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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.