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Finding the Fourth Proportional to 74,449.56, 102,741.03 and 40,458.04

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Solution

The fourth proportional to 74,449.56, 102,741.03 and 40,458.04 is: 55,832.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,449.56 : 102,741.03 = 40,458.04 : x
  2. Step 2: Convert to fraction form
    74,449.56/102,741.03 = 40,458.04/x
  3. Step 3: Cross multiply
    74,449.56x = 102,741.03 × 40,458.04
  4. Step 4: Simplify right side
    74,449.56x = 4,156,700,701.38
  5. Step 5: Solve for x
    x = 4,156,700,701.38/74,449.56
  6. Step 6: Final answer
    x = 55,832.44

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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.