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Finding the Fourth Proportional to 118,007.30, 176,986.35 and 43,162.70

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Solution

The fourth proportional to 118,007.30, 176,986.35 and 43,162.70 is: 64,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,007.30 : 176,986.35 = 43,162.70 : x
  2. Step 2: Convert to fraction form
    118,007.30/176,986.35 = 43,162.70/x
  3. Step 3: Cross multiply
    118,007.30x = 176,986.35 × 43,162.70
  4. Step 4: Simplify right side
    118,007.30x = 7,639,207,844.21
  5. Step 5: Solve for x
    x = 7,639,207,844.21/118,007.30
  6. Step 6: Final answer
    x = 64,735.04

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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.