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Finding the Fourth Proportional to 133,731.30, 200,548.35 and 44,987.70

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Solution

The fourth proportional to 133,731.30, 200,548.35 and 44,987.70 is: 67,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,731.30 : 200,548.35 = 44,987.70 : x
  2. Step 2: Convert to fraction form
    133,731.30/200,548.35 = 44,987.70/x
  3. Step 3: Cross multiply
    133,731.30x = 200,548.35 × 44,987.70
  4. Step 4: Simplify right side
    133,731.30x = 9,022,209,005.30
  5. Step 5: Solve for x
    x = 9,022,209,005.30/133,731.30
  6. Step 6: Final answer
    x = 67,465.20

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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.