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Finding the Fourth Proportional to 73,783.35, 110,785.73 and 42,229.04

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Solution

The fourth proportional to 73,783.35, 110,785.73 and 42,229.04 is: 63,406.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,783.35 : 110,785.73 = 42,229.04 : x
  2. Step 2: Convert to fraction form
    73,783.35/110,785.73 = 42,229.04/x
  3. Step 3: Cross multiply
    73,783.35x = 110,785.73 × 42,229.04
  4. Step 4: Simplify right side
    73,783.35x = 4,678,374,258.53
  5. Step 5: Solve for x
    x = 4,678,374,258.53/73,783.35
  6. Step 6: Final answer
    x = 63,406.91

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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.