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Finding the Fourth Proportional to 186,503.36, 279,782.82 and 66,550.96

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Solution

The fourth proportional to 186,503.36, 279,782.82 and 66,550.96 is: 99,836.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,503.36 : 279,782.82 = 66,550.96 : x
  2. Step 2: Convert to fraction form
    186,503.36/279,782.82 = 66,550.96/x
  3. Step 3: Cross multiply
    186,503.36x = 279,782.82 × 66,550.96
  4. Step 4: Simplify right side
    186,503.36x = 18,619,815,262.51
  5. Step 5: Solve for x
    x = 18,619,815,262.51/186,503.36
  6. Step 6: Final answer
    x = 99,836.35

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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.