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Finding the Fourth Proportional to 74,360.76, 102,611.52 and 42,523.44

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Solution

The fourth proportional to 74,360.76, 102,611.52 and 42,523.44 is: 58,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,360.76 : 102,611.52 = 42,523.44 : x
  2. Step 2: Convert to fraction form
    74,360.76/102,611.52 = 42,523.44/x
  3. Step 3: Cross multiply
    74,360.76x = 102,611.52 × 42,523.44
  4. Step 4: Simplify right side
    74,360.76x = 4,363,394,814.03
  5. Step 5: Solve for x
    x = 4,363,394,814.03/74,360.76
  6. Step 6: Final answer
    x = 58,678.73

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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.