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Finding the Fourth Proportional to 171,816.80, 257,725.20 and 93,084.80

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Solution

The fourth proportional to 171,816.80, 257,725.20 and 93,084.80 is: 139,627.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,816.80 : 257,725.20 = 93,084.80 : x
  2. Step 2: Convert to fraction form
    171,816.80/257,725.20 = 93,084.80/x
  3. Step 3: Cross multiply
    171,816.80x = 257,725.20 × 93,084.80
  4. Step 4: Simplify right side
    171,816.80x = 23,990,298,696.96
  5. Step 5: Solve for x
    x = 23,990,298,696.96/171,816.80
  6. Step 6: Final answer
    x = 139,627.20

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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.