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Finding the Fourth Proportional to 74,573.57, 102,911.49 and 41,039.57

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Solution

The fourth proportional to 74,573.57, 102,911.49 and 41,039.57 is: 56,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,573.57 : 102,911.49 = 41,039.57 : x
  2. Step 2: Convert to fraction form
    74,573.57/102,911.49 = 41,039.57/x
  3. Step 3: Cross multiply
    74,573.57x = 102,911.49 × 41,039.57
  4. Step 4: Simplify right side
    74,573.57x = 4,223,442,783.10
  5. Step 5: Solve for x
    x = 4,223,442,783.10/74,573.57
  6. Step 6: Final answer
    x = 56,634.58

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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.