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Finding the Fourth Proportional to 185,007.78, 277,341.56 and 66,650.17

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Solution

The fourth proportional to 185,007.78, 277,341.56 and 66,650.17 is: 99,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,007.78 : 277,341.56 = 66,650.17 : x
  2. Step 2: Convert to fraction form
    185,007.78/277,341.56 = 66,650.17/x
  3. Step 3: Cross multiply
    185,007.78x = 277,341.56 × 66,650.17
  4. Step 4: Simplify right side
    185,007.78x = 18,484,862,122.07
  5. Step 5: Solve for x
    x = 18,484,862,122.07/185,007.78
  6. Step 6: Final answer
    x = 99,913.97

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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.