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Finding the Fourth Proportional to 74,652.45, 103,020.36 and 41,118.45

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Solution

The fourth proportional to 74,652.45, 103,020.36 and 41,118.45 is: 56,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,652.45 : 103,020.36 = 41,118.45 : x
  2. Step 2: Convert to fraction form
    74,652.45/103,020.36 = 41,118.45/x
  3. Step 3: Cross multiply
    74,652.45x = 103,020.36 × 41,118.45
  4. Step 4: Simplify right side
    74,652.45x = 4,236,037,521.64
  5. Step 5: Solve for x
    x = 4,236,037,521.64/74,652.45
  6. Step 6: Final answer
    x = 56,743.45

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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.