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Finding the Fourth Proportional to 74,236.88, 102,452.64 and 42,415.76

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Solution

The fourth proportional to 74,236.88, 102,452.64 and 42,415.76 is: 58,537.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,236.88 : 102,452.64 = 42,415.76 : x
  2. Step 2: Convert to fraction form
    74,236.88/102,452.64 = 42,415.76/x
  3. Step 3: Cross multiply
    74,236.88x = 102,452.64 × 42,415.76
  4. Step 4: Simplify right side
    74,236.88x = 4,345,606,589.61
  5. Step 5: Solve for x
    x = 4,345,606,589.61/74,236.88
  6. Step 6: Final answer
    x = 58,537.03

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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.