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Finding the Fourth Proportional to 363,756.76, 545,636.22 and 127,099.48

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Solution

The fourth proportional to 363,756.76, 545,636.22 and 127,099.48 is: 190,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,756.76 : 545,636.22 = 127,099.48 : x
  2. Step 2: Convert to fraction form
    363,756.76/545,636.22 = 127,099.48/x
  3. Step 3: Cross multiply
    363,756.76x = 545,636.22 × 127,099.48
  4. Step 4: Simplify right side
    363,756.76x = 69,350,079,831.17
  5. Step 5: Solve for x
    x = 69,350,079,831.17/363,756.76
  6. Step 6: Final answer
    x = 190,649.60

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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.