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Finding the Fourth Proportional to 127,751.77, 191,650.74 and 52,831.23

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Solution

The fourth proportional to 127,751.77, 191,650.74 and 52,831.23 is: 79,256.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,751.77 : 191,650.74 = 52,831.23 : x
  2. Step 2: Convert to fraction form
    127,751.77/191,650.74 = 52,831.23/x
  3. Step 3: Cross multiply
    127,751.77x = 191,650.74 × 52,831.23
  4. Step 4: Simplify right side
    127,751.77x = 10,125,144,324.61
  5. Step 5: Solve for x
    x = 10,125,144,324.61/127,751.77
  6. Step 6: Final answer
    x = 79,256.39

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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.