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Finding the Fourth Proportional to 186,220.53, 279,333.36 and 53,100.77

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Solution

The fourth proportional to 186,220.53, 279,333.36 and 53,100.77 is: 79,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,220.53 : 279,333.36 = 53,100.77 : x
  2. Step 2: Convert to fraction form
    186,220.53/279,333.36 = 53,100.77/x
  3. Step 3: Cross multiply
    186,220.53x = 279,333.36 × 53,100.77
  4. Step 4: Simplify right side
    186,220.53x = 14,832,815,106.02
  5. Step 5: Solve for x
    x = 14,832,815,106.02/186,220.53
  6. Step 6: Final answer
    x = 79,651.88

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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.