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Finding the Fourth Proportional to 119,042.80, 178,570.68 and 35,934.64

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Solution

The fourth proportional to 119,042.80, 178,570.68 and 35,934.64 is: 53,903.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,042.80 : 178,570.68 = 35,934.64 : x
  2. Step 2: Convert to fraction form
    119,042.80/178,570.68 = 35,934.64/x
  3. Step 3: Cross multiply
    119,042.80x = 178,570.68 × 35,934.64
  4. Step 4: Simplify right side
    119,042.80x = 6,416,873,100.36
  5. Step 5: Solve for x
    x = 6,416,873,100.36/119,042.80
  6. Step 6: Final answer
    x = 53,903.92

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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.