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Finding the Fourth Proportional to 74,290.50, 111,453.03 and 25,042.50

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Solution

The fourth proportional to 74,290.50, 111,453.03 and 25,042.50 is: 37,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,290.50 : 111,453.03 = 25,042.50 : x
  2. Step 2: Convert to fraction form
    74,290.50/111,453.03 = 25,042.50/x
  3. Step 3: Cross multiply
    74,290.50x = 111,453.03 × 25,042.50
  4. Step 4: Simplify right side
    74,290.50x = 2,791,062,503.78
  5. Step 5: Solve for x
    x = 2,791,062,503.78/74,290.50
  6. Step 6: Final answer
    x = 37,569.57

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1.5x scale

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.