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Finding the Fourth Proportional to 103,673.68, 155,487.96 and 40,473.46

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Solution

The fourth proportional to 103,673.68, 155,487.96 and 40,473.46 is: 60,701.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.68 : 155,487.96 = 40,473.46 : x
  2. Step 2: Convert to fraction form
    103,673.68/155,487.96 = 40,473.46/x
  3. Step 3: Cross multiply
    103,673.68x = 155,487.96 × 40,473.46
  4. Step 4: Simplify right side
    103,673.68x = 6,293,135,729.54
  5. Step 5: Solve for x
    x = 6,293,135,729.54/103,673.68
  6. Step 6: Final answer
    x = 60,701.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.