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Finding the Fourth Proportional to 127,963.56, 191,945.34 and 65,594.28

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Solution

The fourth proportional to 127,963.56, 191,945.34 and 65,594.28 is: 98,391.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,963.56 : 191,945.34 = 65,594.28 : x
  2. Step 2: Convert to fraction form
    127,963.56/191,945.34 = 65,594.28/x
  3. Step 3: Cross multiply
    127,963.56x = 191,945.34 × 65,594.28
  4. Step 4: Simplify right side
    127,963.56x = 12,590,516,376.66
  5. Step 5: Solve for x
    x = 12,590,516,376.66/127,963.56
  6. Step 6: Final answer
    x = 98,391.42

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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.