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Finding the Fourth Proportional to 134,223, 201,335.72 and 40,728.75

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Solution

The fourth proportional to 134,223, 201,335.72 and 40,728.75 is: 61,093.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,223 : 201,335.72 = 40,728.75 : x
  2. Step 2: Convert to fraction form
    134,223/201,335.72 = 40,728.75/x
  3. Step 3: Cross multiply
    134,223x = 201,335.72 × 40,728.75
  4. Step 4: Simplify right side
    134,223x = 8,200,152,002.31
  5. Step 5: Solve for x
    x = 8,200,152,002.31/134,223
  6. Step 6: Final answer
    x = 61,093.49

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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.