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Finding the Fourth Proportional to 142,554.57, 213,879.36 and 47,794.13

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Solution

The fourth proportional to 142,554.57, 213,879.36 and 47,794.13 is: 71,707.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,554.57 : 213,879.36 = 47,794.13 : x
  2. Step 2: Convert to fraction form
    142,554.57/213,879.36 = 47,794.13/x
  3. Step 3: Cross multiply
    142,554.57x = 213,879.36 × 47,794.13
  4. Step 4: Simplify right side
    142,554.57x = 10,222,176,866.76
  5. Step 5: Solve for x
    x = 10,222,176,866.76/142,554.57
  6. Step 6: Final answer
    x = 71,707.11

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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.