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Finding the Fourth Proportional to 162,793.47, 243,796.51 and 140,748.51

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Solution

The fourth proportional to 162,793.47, 243,796.51 and 140,748.51 is: 210,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,793.47 : 243,796.51 = 140,748.51 : x
  2. Step 2: Convert to fraction form
    162,793.47/243,796.51 = 140,748.51/x
  3. Step 3: Cross multiply
    162,793.47x = 243,796.51 × 140,748.51
  4. Step 4: Simplify right side
    162,793.47x = 34,313,995,525.70
  5. Step 5: Solve for x
    x = 34,313,995,525.70/162,793.47
  6. Step 6: Final answer
    x = 210,782.38

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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.