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Finding the Fourth Proportional to 442,183.91, 663,112.70 and 157,798.39

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Solution

The fourth proportional to 442,183.91, 663,112.70 and 157,798.39 is: 236,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,183.91 : 663,112.70 = 157,798.39 : x
  2. Step 2: Convert to fraction form
    442,183.91/663,112.70 = 157,798.39/x
  3. Step 3: Cross multiply
    442,183.91x = 663,112.70 × 157,798.39
  4. Step 4: Simplify right side
    442,183.91x = 104,638,116,214.60
  5. Step 5: Solve for x
    x = 104,638,116,214.60/442,183.91
  6. Step 6: Final answer
    x = 236,639.36

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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.