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Finding the Fourth Proportional to 168,803.16, 252,923.59 and 118,778.14

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Solution

The fourth proportional to 168,803.16, 252,923.59 and 118,778.14 is: 177,969.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,803.16 : 252,923.59 = 118,778.14 : x
  2. Step 2: Convert to fraction form
    168,803.16/252,923.59 = 118,778.14/x
  3. Step 3: Cross multiply
    168,803.16x = 252,923.59 × 118,778.14
  4. Step 4: Simplify right side
    168,803.16x = 30,041,793,582.32
  5. Step 5: Solve for x
    x = 30,041,793,582.32/168,803.16
  6. Step 6: Final answer
    x = 177,969.38

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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.