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Finding the Fourth Proportional to 277,238.66, 415,784.19 and 77,546.66

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Solution

The fourth proportional to 277,238.66, 415,784.19 and 77,546.66 is: 116,299.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,238.66 : 415,784.19 = 77,546.66 : x
  2. Step 2: Convert to fraction form
    277,238.66/415,784.19 = 77,546.66/x
  3. Step 3: Cross multiply
    277,238.66x = 415,784.19 × 77,546.66
  4. Step 4: Simplify right side
    277,238.66x = 32,242,675,215.31
  5. Step 5: Solve for x
    x = 32,242,675,215.31/277,238.66
  6. Step 6: Final answer
    x = 116,299.35

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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.