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Finding the Fourth Proportional to 74,568.63, 102,904.92 and 40,577.12

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Solution

The fourth proportional to 74,568.63, 102,904.92 and 40,577.12 is: 55,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,568.63 : 102,904.92 = 40,577.12 : x
  2. Step 2: Convert to fraction form
    74,568.63/102,904.92 = 40,577.12/x
  3. Step 3: Cross multiply
    74,568.63x = 102,904.92 × 40,577.12
  4. Step 4: Simplify right side
    74,568.63x = 4,175,585,158.80
  5. Step 5: Solve for x
    x = 4,175,585,158.80/74,568.63
  6. Step 6: Final answer
    x = 55,996.54

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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.