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Finding the Fourth Proportional to 185,574.78, 278,362.04 and 65,719.62

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Solution

The fourth proportional to 185,574.78, 278,362.04 and 65,719.62 is: 98,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,574.78 : 278,362.04 = 65,719.62 : x
  2. Step 2: Convert to fraction form
    185,574.78/278,362.04 = 65,719.62/x
  3. Step 3: Cross multiply
    185,574.78x = 278,362.04 × 65,719.62
  4. Step 4: Simplify right side
    185,574.78x = 18,293,847,162.63
  5. Step 5: Solve for x
    x = 18,293,847,162.63/185,574.78
  6. Step 6: Final answer
    x = 98,579.38

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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.