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Finding the Fourth Proportional to 116,857.80, 175,401.90 and 57,760.20

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Solution

The fourth proportional to 116,857.80, 175,401.90 and 57,760.20 is: 86,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,857.80 : 175,401.90 = 57,760.20 : x
  2. Step 2: Convert to fraction form
    116,857.80/175,401.90 = 57,760.20/x
  3. Step 3: Cross multiply
    116,857.80x = 175,401.90 × 57,760.20
  4. Step 4: Simplify right side
    116,857.80x = 10,131,248,824.38
  5. Step 5: Solve for x
    x = 10,131,248,824.38/116,857.80
  6. Step 6: Final answer
    x = 86,697.24

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1.5x scale

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.