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Finding the Fourth Proportional to 528,099.20, 792,343.20 and 173,124.80

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Solution

The fourth proportional to 528,099.20, 792,343.20 and 173,124.80 is: 259,750.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,099.20 : 792,343.20 = 173,124.80 : x
  2. Step 2: Convert to fraction form
    528,099.20/792,343.20 = 173,124.80/x
  3. Step 3: Cross multiply
    528,099.20x = 792,343.20 × 173,124.80
  4. Step 4: Simplify right side
    528,099.20x = 137,174,258,031.36
  5. Step 5: Solve for x
    x = 137,174,258,031.36/528,099.20
  6. Step 6: Final answer
    x = 259,750.93

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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.