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Finding the Fourth Proportional to 236,575.20, 354,862.80 and 143,263.20

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Solution

The fourth proportional to 236,575.20, 354,862.80 and 143,263.20 is: 214,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,575.20 : 354,862.80 = 143,263.20 : x
  2. Step 2: Convert to fraction form
    236,575.20/354,862.80 = 143,263.20/x
  3. Step 3: Cross multiply
    236,575.20x = 354,862.80 × 143,263.20
  4. Step 4: Simplify right side
    236,575.20x = 50,838,780,288.96
  5. Step 5: Solve for x
    x = 50,838,780,288.96/236,575.20
  6. Step 6: Final answer
    x = 214,894.80

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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.