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Finding the Fourth Proportional to 185,428.15, 277,782.34 and 136,652.88

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Solution

The fourth proportional to 185,428.15, 277,782.34 and 136,652.88 is: 204,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,428.15 : 277,782.34 = 136,652.88 : x
  2. Step 2: Convert to fraction form
    185,428.15/277,782.34 = 136,652.88/x
  3. Step 3: Cross multiply
    185,428.15x = 277,782.34 × 136,652.88
  4. Step 4: Simplify right side
    185,428.15x = 37,959,756,774.14
  5. Step 5: Solve for x
    x = 37,959,756,774.14/185,428.15
  6. Step 6: Final answer
    x = 204,714.10

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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.