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Finding the Fourth Proportional to 74,506.99, 102,793.56 and 42,236.89

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Solution

The fourth proportional to 74,506.99, 102,793.56 and 42,236.89 is: 58,272.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,506.99 : 102,793.56 = 42,236.89 : x
  2. Step 2: Convert to fraction form
    74,506.99/102,793.56 = 42,236.89/x
  3. Step 3: Cross multiply
    74,506.99x = 102,793.56 × 42,236.89
  4. Step 4: Simplify right side
    74,506.99x = 4,341,680,449.27
  5. Step 5: Solve for x
    x = 4,341,680,449.27/74,506.99
  6. Step 6: Final answer
    x = 58,272.12

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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.