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Finding the Fourth Proportional to 60,045.43, 90,124.59 and 30,484.48

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Solution

The fourth proportional to 60,045.43, 90,124.59 and 30,484.48 is: 45,755.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,045.43 : 90,124.59 = 30,484.48 : x
  2. Step 2: Convert to fraction form
    60,045.43/90,124.59 = 30,484.48/x
  3. Step 3: Cross multiply
    60,045.43x = 90,124.59 × 30,484.48
  4. Step 4: Simplify right side
    60,045.43x = 2,747,401,261.36
  5. Step 5: Solve for x
    x = 2,747,401,261.36/60,045.43
  6. Step 6: Final answer
    x = 45,755.38

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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.