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Finding the Fourth Proportional to 658,186.64, 987,318.23 and 184,908.90

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Solution

The fourth proportional to 658,186.64, 987,318.23 and 184,908.90 is: 277,374.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,186.64 : 987,318.23 = 184,908.90 : x
  2. Step 2: Convert to fraction form
    658,186.64/987,318.23 = 184,908.90/x
  3. Step 3: Cross multiply
    658,186.64x = 987,318.23 × 184,908.90
  4. Step 4: Simplify right side
    658,186.64x = 182,563,932,023.96
  5. Step 5: Solve for x
    x = 182,563,932,023.96/658,186.64
  6. Step 6: Final answer
    x = 277,374.11

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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.