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Finding the Fourth Proportional to 127,851.40, 191,777.10 and 125,664.40

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Solution

The fourth proportional to 127,851.40, 191,777.10 and 125,664.40 is: 188,496.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,851.40 : 191,777.10 = 125,664.40 : x
  2. Step 2: Convert to fraction form
    127,851.40/191,777.10 = 125,664.40/x
  3. Step 3: Cross multiply
    127,851.40x = 191,777.10 × 125,664.40
  4. Step 4: Simplify right side
    127,851.40x = 24,099,554,205.24
  5. Step 5: Solve for x
    x = 24,099,554,205.24/127,851.40
  6. Step 6: Final answer
    x = 188,496.60

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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.