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Finding the Fourth Proportional to 127,934.62, 191,807.16 and 61,311.31

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Solution

The fourth proportional to 127,934.62, 191,807.16 and 61,311.31 is: 91,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,934.62 : 191,807.16 = 61,311.31 : x
  2. Step 2: Convert to fraction form
    127,934.62/191,807.16 = 61,311.31/x
  3. Step 3: Cross multiply
    127,934.62x = 191,807.16 × 61,311.31
  4. Step 4: Simplify right side
    127,934.62x = 11,759,947,537.54
  5. Step 5: Solve for x
    x = 11,759,947,537.54/127,934.62
  6. Step 6: Final answer
    x = 91,921.54

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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.