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Finding the Fourth Proportional to 118,401.60, 177,703.20 and 48,331.20

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Solution

The fourth proportional to 118,401.60, 177,703.20 and 48,331.20 is: 72,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,401.60 : 177,703.20 = 48,331.20 : x
  2. Step 2: Convert to fraction form
    118,401.60/177,703.20 = 48,331.20/x
  3. Step 3: Cross multiply
    118,401.60x = 177,703.20 × 48,331.20
  4. Step 4: Simplify right side
    118,401.60x = 8,588,608,899.84
  5. Step 5: Solve for x
    x = 8,588,608,899.84/118,401.60
  6. Step 6: Final answer
    x = 72,537.95

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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.