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Finding the Fourth Proportional to 186,458.86, 279,632.70 and 66,494.62

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Solution

The fourth proportional to 186,458.86, 279,632.70 and 66,494.62 is: 99,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,458.86 : 279,632.70 = 66,494.62 : x
  2. Step 2: Convert to fraction form
    186,458.86/279,632.70 = 66,494.62/x
  3. Step 3: Cross multiply
    186,458.86x = 279,632.70 × 66,494.62
  4. Step 4: Simplify right side
    186,458.86x = 18,594,068,395.44
  5. Step 5: Solve for x
    x = 18,594,068,395.44/186,458.86
  6. Step 6: Final answer
    x = 99,722.10

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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.