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Finding the Fourth Proportional to 207,057.60, 310,593.30 and 57,285.35

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Solution

The fourth proportional to 207,057.60, 310,593.30 and 57,285.35 is: 85,929.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,057.60 : 310,593.30 = 57,285.35 : x
  2. Step 2: Convert to fraction form
    207,057.60/310,593.30 = 57,285.35/x
  3. Step 3: Cross multiply
    207,057.60x = 310,593.30 × 57,285.35
  4. Step 4: Simplify right side
    207,057.60x = 17,792,445,295.09
  5. Step 5: Solve for x
    x = 17,792,445,295.09/207,057.60
  6. Step 6: Final answer
    x = 85,929.93

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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.