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Finding the Fourth Proportional to 100,078.32, 150,041.16 and 60,624.96

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Solution

The fourth proportional to 100,078.32, 150,041.16 and 60,624.96 is: 90,891.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,078.32 : 150,041.16 = 60,624.96 : x
  2. Step 2: Convert to fraction form
    100,078.32/150,041.16 = 60,624.96/x
  3. Step 3: Cross multiply
    100,078.32x = 150,041.16 × 60,624.96
  4. Step 4: Simplify right side
    100,078.32x = 9,096,239,323.35
  5. Step 5: Solve for x
    x = 9,096,239,323.35/100,078.32
  6. Step 6: Final answer
    x = 90,891.21

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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.