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Finding the Fourth Proportional to 207,219.92, 309,650.22 and 155,592

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Solution

The fourth proportional to 207,219.92, 309,650.22 and 155,592 is: 232,502.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,219.92 : 309,650.22 = 155,592 : x
  2. Step 2: Convert to fraction form
    207,219.92/309,650.22 = 155,592/x
  3. Step 3: Cross multiply
    207,219.92x = 309,650.22 × 155,592
  4. Step 4: Simplify right side
    207,219.92x = 48,179,097,030.24
  5. Step 5: Solve for x
    x = 48,179,097,030.24/207,219.92
  6. Step 6: Final answer
    x = 232,502.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.