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Finding the Fourth Proportional to 479,806.77, 719,711.07 and 124,820.22

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Solution

The fourth proportional to 479,806.77, 719,711.07 and 124,820.22 is: 187,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,806.77 : 719,711.07 = 124,820.22 : x
  2. Step 2: Convert to fraction form
    479,806.77/719,711.07 = 124,820.22/x
  3. Step 3: Cross multiply
    479,806.77x = 719,711.07 × 124,820.22
  4. Step 4: Simplify right side
    479,806.77x = 89,834,494,093.84
  5. Step 5: Solve for x
    x = 89,834,494,093.84/479,806.77
  6. Step 6: Final answer
    x = 187,230.57

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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.