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Finding the Fourth Proportional to 103,445.48, 155,057.94 and 58,976.48

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Solution

The fourth proportional to 103,445.48, 155,057.94 and 58,976.48 is: 88,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,445.48 : 155,057.94 = 58,976.48 : x
  2. Step 2: Convert to fraction form
    103,445.48/155,057.94 = 58,976.48/x
  3. Step 3: Cross multiply
    103,445.48x = 155,057.94 × 58,976.48
  4. Step 4: Simplify right side
    103,445.48x = 9,144,771,497.25
  5. Step 5: Solve for x
    x = 9,144,771,497.25/103,445.48
  6. Step 6: Final answer
    x = 88,401.85

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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.