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Finding the Fourth Proportional to 353,188.80, 529,322.40 and 163,627.20

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Solution

The fourth proportional to 353,188.80, 529,322.40 and 163,627.20 is: 245,227.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,188.80 : 529,322.40 = 163,627.20 : x
  2. Step 2: Convert to fraction form
    353,188.80/529,322.40 = 163,627.20/x
  3. Step 3: Cross multiply
    353,188.80x = 529,322.40 × 163,627.20
  4. Step 4: Simplify right side
    353,188.80x = 86,611,542,209.28
  5. Step 5: Solve for x
    x = 86,611,542,209.28/353,188.80
  6. Step 6: Final answer
    x = 245,227.32

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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.