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Finding the Fourth Proportional to 73,927.57, 102,020.04 and 40,393.57

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Solution

The fourth proportional to 73,927.57, 102,020.04 and 40,393.57 is: 55,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,927.57 : 102,020.04 = 40,393.57 : x
  2. Step 2: Convert to fraction form
    73,927.57/102,020.04 = 40,393.57/x
  3. Step 3: Cross multiply
    73,927.57x = 102,020.04 × 40,393.57
  4. Step 4: Simplify right side
    73,927.57x = 4,120,952,915.07
  5. Step 5: Solve for x
    x = 4,120,952,915.07/73,927.57
  6. Step 6: Final answer
    x = 55,743.12

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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.