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Finding the Fourth Proportional to 375,085.44, 562,724.81 and 135,189.76

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Solution

The fourth proportional to 375,085.44, 562,724.81 and 135,189.76 is: 202,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,085.44 : 562,724.81 = 135,189.76 : x
  2. Step 2: Convert to fraction form
    375,085.44/562,724.81 = 135,189.76/x
  3. Step 3: Cross multiply
    375,085.44x = 562,724.81 × 135,189.76
  4. Step 4: Simplify right side
    375,085.44x = 76,074,632,009.95
  5. Step 5: Solve for x
    x = 76,074,632,009.95/375,085.44
  6. Step 6: Final answer
    x = 202,819.47

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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.