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Finding the Fourth Proportional to 74,149.84, 102,327.12 and 40,615.84

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Solution

The fourth proportional to 74,149.84, 102,327.12 and 40,615.84 is: 56,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,149.84 : 102,327.12 = 40,615.84 : x
  2. Step 2: Convert to fraction form
    74,149.84/102,327.12 = 40,615.84/x
  3. Step 3: Cross multiply
    74,149.84x = 102,327.12 × 40,615.84
  4. Step 4: Simplify right side
    74,149.84x = 4,156,101,933.58
  5. Step 5: Solve for x
    x = 4,156,101,933.58/74,149.84
  6. Step 6: Final answer
    x = 56,050.05

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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.