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Finding the Fourth Proportional to 127,934.70, 191,902.05 and 101,208.30

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Solution

The fourth proportional to 127,934.70, 191,902.05 and 101,208.30 is: 151,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,934.70 : 191,902.05 = 101,208.30 : x
  2. Step 2: Convert to fraction form
    127,934.70/191,902.05 = 101,208.30/x
  3. Step 3: Cross multiply
    127,934.70x = 191,902.05 × 101,208.30
  4. Step 4: Simplify right side
    127,934.70x = 19,422,080,247.02
  5. Step 5: Solve for x
    x = 19,422,080,247.02/127,934.70
  6. Step 6: Final answer
    x = 151,812.45

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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.