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Finding the Fourth Proportional to 236,572.20, 354,858.30 and 143,260.20

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Solution

The fourth proportional to 236,572.20, 354,858.30 and 143,260.20 is: 214,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,572.20 : 354,858.30 = 143,260.20 : x
  2. Step 2: Convert to fraction form
    236,572.20/354,858.30 = 143,260.20/x
  3. Step 3: Cross multiply
    236,572.20x = 354,858.30 × 143,260.20
  4. Step 4: Simplify right side
    236,572.20x = 50,837,071,029.66
  5. Step 5: Solve for x
    x = 50,837,071,029.66/236,572.20
  6. Step 6: Final answer
    x = 214,890.30

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1.5x scale

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.