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Finding the Fourth Proportional to 133,925.16, 200,889.18 and 40,431.72

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Solution

The fourth proportional to 133,925.16, 200,889.18 and 40,431.72 is: 60,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,925.16 : 200,889.18 = 40,431.72 : x
  2. Step 2: Convert to fraction form
    133,925.16/200,889.18 = 40,431.72/x
  3. Step 3: Cross multiply
    133,925.16x = 200,889.18 × 40,431.72
  4. Step 4: Simplify right side
    133,925.16x = 8,122,295,076.79
  5. Step 5: Solve for x
    x = 8,122,295,076.79/133,925.16
  6. Step 6: Final answer
    x = 60,648.01

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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.