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Finding the Fourth Proportional to 186,460.73, 279,742.73 and 74,219.77

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Solution

The fourth proportional to 186,460.73, 279,742.73 and 74,219.77 is: 111,350.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,460.73 : 279,742.73 = 74,219.77 : x
  2. Step 2: Convert to fraction form
    186,460.73/279,742.73 = 74,219.77/x
  3. Step 3: Cross multiply
    186,460.73x = 279,742.73 × 74,219.77
  4. Step 4: Simplify right side
    186,460.73x = 20,762,441,095.68
  5. Step 5: Solve for x
    x = 20,762,441,095.68/186,460.73
  6. Step 6: Final answer
    x = 111,350.21

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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.