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Finding the Fourth Proportional to 127,951.80, 191,927.70 and 65,743.80

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Solution

The fourth proportional to 127,951.80, 191,927.70 and 65,743.80 is: 98,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,951.80 : 191,927.70 = 65,743.80 : x
  2. Step 2: Convert to fraction form
    127,951.80/191,927.70 = 65,743.80/x
  3. Step 3: Cross multiply
    127,951.80x = 191,927.70 × 65,743.80
  4. Step 4: Simplify right side
    127,951.80x = 12,618,056,323.26
  5. Step 5: Solve for x
    x = 12,618,056,323.26/127,951.80
  6. Step 6: Final answer
    x = 98,615.70

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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.