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Finding the Fourth Proportional to 185,735.76, 278,623.08 and 61,086.48

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Solution

The fourth proportional to 185,735.76, 278,623.08 and 61,086.48 is: 91,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,735.76 : 278,623.08 = 61,086.48 : x
  2. Step 2: Convert to fraction form
    185,735.76/278,623.08 = 61,086.48/x
  3. Step 3: Cross multiply
    185,735.76x = 278,623.08 × 61,086.48
  4. Step 4: Simplify right side
    185,735.76x = 17,020,103,203.96
  5. Step 5: Solve for x
    x = 17,020,103,203.96/185,735.76
  6. Step 6: Final answer
    x = 91,636.11

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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.