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Finding the Fourth Proportional to 123,384.28, 184,998.66 and 104,670.88

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Solution

The fourth proportional to 123,384.28, 184,998.66 and 104,670.88 is: 156,940.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,384.28 : 184,998.66 = 104,670.88 : x
  2. Step 2: Convert to fraction form
    123,384.28/184,998.66 = 104,670.88/x
  3. Step 3: Cross multiply
    123,384.28x = 184,998.66 × 104,670.88
  4. Step 4: Simplify right side
    123,384.28x = 19,363,972,541.02
  5. Step 5: Solve for x
    x = 19,363,972,541.02/123,384.28
  6. Step 6: Final answer
    x = 156,940.35

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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.