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Finding the Fourth Proportional to 60,492.70, 90,629.70 and 51,744.70

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Solution

The fourth proportional to 60,492.70, 90,629.70 and 51,744.70 is: 77,523.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,492.70 : 90,629.70 = 51,744.70 : x
  2. Step 2: Convert to fraction form
    60,492.70/90,629.70 = 51,744.70/x
  3. Step 3: Cross multiply
    60,492.70x = 90,629.70 × 51,744.70
  4. Step 4: Simplify right side
    60,492.70x = 4,689,606,637.59
  5. Step 5: Solve for x
    x = 4,689,606,637.59/60,492.70
  6. Step 6: Final answer
    x = 77,523.51

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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.