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Finding the Fourth Proportional to 174,718.80, 262,078.20 and 118,731.60

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Solution

The fourth proportional to 174,718.80, 262,078.20 and 118,731.60 is: 178,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,718.80 : 262,078.20 = 118,731.60 : x
  2. Step 2: Convert to fraction form
    174,718.80/262,078.20 = 118,731.60/x
  3. Step 3: Cross multiply
    174,718.80x = 262,078.20 × 118,731.60
  4. Step 4: Simplify right side
    174,718.80x = 31,116,964,011.12
  5. Step 5: Solve for x
    x = 31,116,964,011.12/174,718.80
  6. Step 6: Final answer
    x = 178,097.40

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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.