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Finding the Fourth Proportional to 103,698.46, 155,548.19 and 36,230.21

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Solution

The fourth proportional to 103,698.46, 155,548.19 and 36,230.21 is: 54,345.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,698.46 : 155,548.19 = 36,230.21 : x
  2. Step 2: Convert to fraction form
    103,698.46/155,548.19 = 36,230.21/x
  3. Step 3: Cross multiply
    103,698.46x = 155,548.19 × 36,230.21
  4. Step 4: Simplify right side
    103,698.46x = 5,635,543,796.54
  5. Step 5: Solve for x
    x = 5,635,543,796.54/103,698.46
  6. Step 6: Final answer
    x = 54,345.49

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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.