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Finding the Fourth Proportional to 185,401.78, 255,838.71 and 104,818.12

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Solution

The fourth proportional to 185,401.78, 255,838.71 and 104,818.12 is: 144,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,401.78 : 255,838.71 = 104,818.12 : x
  2. Step 2: Convert to fraction form
    185,401.78/255,838.71 = 104,818.12/x
  3. Step 3: Cross multiply
    185,401.78x = 255,838.71 × 104,818.12
  4. Step 4: Simplify right side
    185,401.78x = 26,816,532,605.43
  5. Step 5: Solve for x
    x = 26,816,532,605.43/185,401.78
  6. Step 6: Final answer
    x = 144,640.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.