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Finding the Fourth Proportional to 133,791.10, 200,686.65 and 127,230.10

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Solution

The fourth proportional to 133,791.10, 200,686.65 and 127,230.10 is: 190,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,791.10 : 200,686.65 = 127,230.10 : x
  2. Step 2: Convert to fraction form
    133,791.10/200,686.65 = 127,230.10/x
  3. Step 3: Cross multiply
    133,791.10x = 200,686.65 × 127,230.10
  4. Step 4: Simplify right side
    133,791.10x = 25,533,382,548.17
  5. Step 5: Solve for x
    x = 25,533,382,548.17/133,791.10
  6. Step 6: Final answer
    x = 190,845.15

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1.5x scale

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.