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Finding the Fourth Proportional to 74,573.50, 102,911.45 and 41,039.50

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Solution

The fourth proportional to 74,573.50, 102,911.45 and 41,039.50 is: 56,634.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573.50 : 102,911.45 = 41,039.50 : x
  2. Step 2: Convert to fraction form
    74,573.50/102,911.45 = 41,039.50/x
  3. Step 3: Cross multiply
    74,573.50x = 102,911.45 × 41,039.50
  4. Step 4: Simplify right side
    74,573.50x = 4,223,434,452.28
  5. Step 5: Solve for x
    x = 4,223,434,452.28/74,573.50
  6. Step 6: Final answer
    x = 56,634.52

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1.5x scale

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.