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Finding the Fourth Proportional to 117,488.34, 176,231.70 and 28,743.12

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Solution

The fourth proportional to 117,488.34, 176,231.70 and 28,743.12 is: 43,114.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,488.34 : 176,231.70 = 28,743.12 : x
  2. Step 2: Convert to fraction form
    117,488.34/176,231.70 = 28,743.12/x
  3. Step 3: Cross multiply
    117,488.34x = 176,231.70 × 28,743.12
  4. Step 4: Simplify right side
    117,488.34x = 5,065,448,900.90
  5. Step 5: Solve for x
    x = 5,065,448,900.90/117,488.34
  6. Step 6: Final answer
    x = 43,114.48

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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.