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Finding the Fourth Proportional to 127,340.86, 191,049.48 and 51,400.32

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Solution

The fourth proportional to 127,340.86, 191,049.48 and 51,400.32 is: 77,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,340.86 : 191,049.48 = 51,400.32 : x
  2. Step 2: Convert to fraction form
    127,340.86/191,049.48 = 51,400.32/x
  3. Step 3: Cross multiply
    127,340.86x = 191,049.48 × 51,400.32
  4. Step 4: Simplify right side
    127,340.86x = 9,820,004,407.83
  5. Step 5: Solve for x
    x = 9,820,004,407.83/127,340.86
  6. Step 6: Final answer
    x = 77,115.90

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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.