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Finding the Fourth Proportional to 74,654.45, 103,023.12 and 41,120.45

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Solution

The fourth proportional to 74,654.45, 103,023.12 and 41,120.45 is: 56,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,654.45 : 103,023.12 = 41,120.45 : x
  2. Step 2: Convert to fraction form
    74,654.45/103,023.12 = 41,120.45/x
  3. Step 3: Cross multiply
    74,654.45x = 103,023.12 × 41,120.45
  4. Step 4: Simplify right side
    74,654.45x = 4,236,356,539.69
  5. Step 5: Solve for x
    x = 4,236,356,539.69/74,654.45
  6. Step 6: Final answer
    x = 56,746.21

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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.