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Finding the Fourth Proportional to 186,563.80, 279,845.70 and 61,904.80

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Solution

The fourth proportional to 186,563.80, 279,845.70 and 61,904.80 is: 92,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,563.80 : 279,845.70 = 61,904.80 : x
  2. Step 2: Convert to fraction form
    186,563.80/279,845.70 = 61,904.80/x
  3. Step 3: Cross multiply
    186,563.80x = 279,845.70 × 61,904.80
  4. Step 4: Simplify right side
    186,563.80x = 17,323,792,089.36
  5. Step 5: Solve for x
    x = 17,323,792,089.36/186,563.80
  6. Step 6: Final answer
    x = 92,857.20

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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.