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Finding the Fourth Proportional to 395,900.80, 593,886.16 and 111,593.74

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Solution

The fourth proportional to 395,900.80, 593,886.16 and 111,593.74 is: 167,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,900.80 : 593,886.16 = 111,593.74 : x
  2. Step 2: Convert to fraction form
    395,900.80/593,886.16 = 111,593.74/x
  3. Step 3: Cross multiply
    395,900.80x = 593,886.16 × 111,593.74
  4. Step 4: Simplify right side
    395,900.80x = 66,273,977,728.64
  5. Step 5: Solve for x
    x = 66,273,977,728.64/395,900.80
  6. Step 6: Final answer
    x = 167,400.46

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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.