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Finding the Fourth Proportional to 519,336.48, 779,004.72 and 125,352.48

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Solution

The fourth proportional to 519,336.48, 779,004.72 and 125,352.48 is: 188,028.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,336.48 : 779,004.72 = 125,352.48 : x
  2. Step 2: Convert to fraction form
    519,336.48/779,004.72 = 125,352.48/x
  3. Step 3: Cross multiply
    519,336.48x = 779,004.72 × 125,352.48
  4. Step 4: Simplify right side
    519,336.48x = 97,650,173,583.71
  5. Step 5: Solve for x
    x = 97,650,173,583.71/519,336.48
  6. Step 6: Final answer
    x = 188,028.72

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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.