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Finding the Fourth Proportional to 519,717.50, 779,576.28 and 125,733.50

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Solution

The fourth proportional to 519,717.50, 779,576.28 and 125,733.50 is: 188,600.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,717.50 : 779,576.28 = 125,733.50 : x
  2. Step 2: Convert to fraction form
    519,717.50/779,576.28 = 125,733.50/x
  3. Step 3: Cross multiply
    519,717.50x = 779,576.28 × 125,733.50
  4. Step 4: Simplify right side
    519,717.50x = 98,018,854,201.38
  5. Step 5: Solve for x
    x = 98,018,854,201.38/519,717.50
  6. Step 6: Final answer
    x = 188,600.26

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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.