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Finding the Fourth Proportional to 118,408.50, 177,700.42 and 56,079.18

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Solution

The fourth proportional to 118,408.50, 177,700.42 and 56,079.18 is: 84,160.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,408.50 : 177,700.42 = 56,079.18 : x
  2. Step 2: Convert to fraction form
    118,408.50/177,700.42 = 56,079.18/x
  3. Step 3: Cross multiply
    118,408.50x = 177,700.42 × 56,079.18
  4. Step 4: Simplify right side
    118,408.50x = 9,965,293,839.26
  5. Step 5: Solve for x
    x = 9,965,293,839.26/118,408.50
  6. Step 6: Final answer
    x = 84,160.29

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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.