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Finding the Fourth Proportional to 127,400.40, 191,100.60 and 109,904.40

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Solution

The fourth proportional to 127,400.40, 191,100.60 and 109,904.40 is: 164,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,400.40 : 191,100.60 = 109,904.40 : x
  2. Step 2: Convert to fraction form
    127,400.40/191,100.60 = 109,904.40/x
  3. Step 3: Cross multiply
    127,400.40x = 191,100.60 × 109,904.40
  4. Step 4: Simplify right side
    127,400.40x = 21,002,796,782.64
  5. Step 5: Solve for x
    x = 21,002,796,782.64/127,400.40
  6. Step 6: Final answer
    x = 164,856.60

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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.