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Finding the Fourth Proportional to 74,655.45, 103,024.50 and 41,121.45

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Solution

The fourth proportional to 74,655.45, 103,024.50 and 41,121.45 is: 56,747.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,655.45 : 103,024.50 = 41,121.45 : x
  2. Step 2: Convert to fraction form
    74,655.45/103,024.50 = 41,121.45/x
  3. Step 3: Cross multiply
    74,655.45x = 103,024.50 × 41,121.45
  4. Step 4: Simplify right side
    74,655.45x = 4,236,516,825.53
  5. Step 5: Solve for x
    x = 4,236,516,825.53/74,655.45
  6. Step 6: Final answer
    x = 56,747.59

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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.