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Finding the Fourth Proportional to 127,851.90, 191,777.85 and 125,664.90

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Solution

The fourth proportional to 127,851.90, 191,777.85 and 125,664.90 is: 188,497.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,851.90 : 191,777.85 = 125,664.90 : x
  2. Step 2: Convert to fraction form
    127,851.90/191,777.85 = 125,664.90/x
  3. Step 3: Cross multiply
    127,851.90x = 191,777.85 × 125,664.90
  4. Step 4: Simplify right side
    127,851.90x = 24,099,744,342.47
  5. Step 5: Solve for x
    x = 24,099,744,342.47/127,851.90
  6. Step 6: Final answer
    x = 188,497.35

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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.