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Finding the Fourth Proportional to 142,879.62, 214,319.42 and 49,334.34

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Solution

The fourth proportional to 142,879.62, 214,319.42 and 49,334.34 is: 74,001.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,879.62 : 214,319.42 = 49,334.34 : x
  2. Step 2: Convert to fraction form
    142,879.62/214,319.42 = 49,334.34/x
  3. Step 3: Cross multiply
    142,879.62x = 214,319.42 × 49,334.34
  4. Step 4: Simplify right side
    142,879.62x = 10,573,307,134.88
  5. Step 5: Solve for x
    x = 10,573,307,134.88/142,879.62
  6. Step 6: Final answer
    x = 74,001.51

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1.5x scale

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.