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Finding the Fourth Proportional to 234,108.66, 351,172.92 and 91,984.68

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Solution

The fourth proportional to 234,108.66, 351,172.92 and 91,984.68 is: 137,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,108.66 : 351,172.92 = 91,984.68 : x
  2. Step 2: Convert to fraction form
    234,108.66/351,172.92 = 91,984.68/x
  3. Step 3: Cross multiply
    234,108.66x = 351,172.92 × 91,984.68
  4. Step 4: Simplify right side
    234,108.66x = 32,302,528,670.87
  5. Step 5: Solve for x
    x = 32,302,528,670.87/234,108.66
  6. Step 6: Final answer
    x = 137,980.92

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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.