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Finding the Fourth Proportional to 103,350.96, 155,030.16 and 28,476.96

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Solution

The fourth proportional to 103,350.96, 155,030.16 and 28,476.96 is: 42,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,350.96 : 155,030.16 = 28,476.96 : x
  2. Step 2: Convert to fraction form
    103,350.96/155,030.16 = 28,476.96/x
  3. Step 3: Cross multiply
    103,350.96x = 155,030.16 × 28,476.96
  4. Step 4: Simplify right side
    103,350.96x = 4,414,787,665.11
  5. Step 5: Solve for x
    x = 4,414,787,665.11/103,350.96
  6. Step 6: Final answer
    x = 42,716.46

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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.