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Finding the Fourth Proportional to 234,387.41, 351,709.12 and 99,430.63

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Solution

The fourth proportional to 234,387.41, 351,709.12 and 99,430.63 is: 149,200.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,387.41 : 351,709.12 = 99,430.63 : x
  2. Step 2: Convert to fraction form
    234,387.41/351,709.12 = 99,430.63/x
  3. Step 3: Cross multiply
    234,387.41x = 351,709.12 × 99,430.63
  4. Step 4: Simplify right side
    234,387.41x = 34,970,659,378.35
  5. Step 5: Solve for x
    x = 34,970,659,378.35/234,387.41
  6. Step 6: Final answer
    x = 149,200.25

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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.