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Finding the Fourth Proportional to 139,568.51, 209,273.48 and 95,248.95

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Solution

The fourth proportional to 139,568.51, 209,273.48 and 95,248.95 is: 142,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,568.51 : 209,273.48 = 95,248.95 : x
  2. Step 2: Convert to fraction form
    139,568.51/209,273.48 = 95,248.95/x
  3. Step 3: Cross multiply
    139,568.51x = 209,273.48 × 95,248.95
  4. Step 4: Simplify right side
    139,568.51x = 19,933,078,756.60
  5. Step 5: Solve for x
    x = 19,933,078,756.60/139,568.51
  6. Step 6: Final answer
    x = 142,819.32

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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.