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Finding the Fourth Proportional to 518,599.50, 777,899.26 and 124,615.50

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Solution

The fourth proportional to 518,599.50, 777,899.26 and 124,615.50 is: 186,923.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,599.50 : 777,899.26 = 124,615.50 : x
  2. Step 2: Convert to fraction form
    518,599.50/777,899.26 = 124,615.50/x
  3. Step 3: Cross multiply
    518,599.50x = 777,899.26 × 124,615.50
  4. Step 4: Simplify right side
    518,599.50x = 96,938,305,234.53
  5. Step 5: Solve for x
    x = 96,938,305,234.53/518,599.50
  6. Step 6: Final answer
    x = 186,923.25

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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.