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Finding the Fourth Proportional to 351,057.60, 525,981.60 and 163,684.80

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Solution

The fourth proportional to 351,057.60, 525,981.60 and 163,684.80 is: 245,245.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,057.60 : 525,981.60 = 163,684.80 : x
  2. Step 2: Convert to fraction form
    351,057.60/525,981.60 = 163,684.80/x
  3. Step 3: Cross multiply
    351,057.60x = 525,981.60 × 163,684.80
  4. Step 4: Simplify right side
    351,057.60x = 86,095,192,999.68
  5. Step 5: Solve for x
    x = 86,095,192,999.68/351,057.60
  6. Step 6: Final answer
    x = 245,245.20

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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.