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Finding the Fourth Proportional to 239,098.02, 358,703.19 and 133,989.54

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Solution

The fourth proportional to 239,098.02, 358,703.19 and 133,989.54 is: 201,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,098.02 : 358,703.19 = 133,989.54 : x
  2. Step 2: Convert to fraction form
    239,098.02/358,703.19 = 133,989.54/x
  3. Step 3: Cross multiply
    239,098.02x = 358,703.19 × 133,989.54
  4. Step 4: Simplify right side
    239,098.02x = 48,062,475,424.63
  5. Step 5: Solve for x
    x = 48,062,475,424.63/239,098.02
  6. Step 6: Final answer
    x = 201,015.78

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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.