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Finding the Fourth Proportional to 309,201.96, 426,710.96 and 173,237.04

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Solution

The fourth proportional to 309,201.96, 426,710.96 and 173,237.04 is: 239,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,201.96 : 426,710.96 = 173,237.04 : x
  2. Step 2: Convert to fraction form
    309,201.96/426,710.96 = 173,237.04/x
  3. Step 3: Cross multiply
    309,201.96x = 426,710.96 × 173,237.04
  4. Step 4: Simplify right side
    309,201.96x = 73,922,143,645.96
  5. Step 5: Solve for x
    x = 73,922,143,645.96/309,201.96
  6. Step 6: Final answer
    x = 239,073.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.