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Finding the Fourth Proportional to 118,473.85, 177,741.89 and 42,580.05

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Solution

The fourth proportional to 118,473.85, 177,741.89 and 42,580.05 is: 63,881.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,473.85 : 177,741.89 = 42,580.05 : x
  2. Step 2: Convert to fraction form
    118,473.85/177,741.89 = 42,580.05/x
  3. Step 3: Cross multiply
    118,473.85x = 177,741.89 × 42,580.05
  4. Step 4: Simplify right side
    118,473.85x = 7,568,258,563.29
  5. Step 5: Solve for x
    x = 7,568,258,563.29/118,473.85
  6. Step 6: Final answer
    x = 63,881.26

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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.