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Finding the Fourth Proportional to 183,072.50, 252,643.89 and 103,584.50

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Solution

The fourth proportional to 183,072.50, 252,643.89 and 103,584.50 is: 142,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,072.50 : 252,643.89 = 103,584.50 : x
  2. Step 2: Convert to fraction form
    183,072.50/252,643.89 = 103,584.50/x
  3. Step 3: Cross multiply
    183,072.50x = 252,643.89 × 103,584.50
  4. Step 4: Simplify right side
    183,072.50x = 26,169,991,023.71
  5. Step 5: Solve for x
    x = 26,169,991,023.71/183,072.50
  6. Step 6: Final answer
    x = 142,948.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.