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Finding the Fourth Proportional to 395,573.47, 593,376.59 and 115,090.72

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Solution

The fourth proportional to 395,573.47, 593,376.59 and 115,090.72 is: 172,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,573.47 : 593,376.59 = 115,090.72 : x
  2. Step 2: Convert to fraction form
    395,573.47/593,376.59 = 115,090.72/x
  3. Step 3: Cross multiply
    395,573.47x = 593,376.59 × 115,090.72
  4. Step 4: Simplify right side
    395,573.47x = 68,292,140,468.89
  5. Step 5: Solve for x
    x = 68,292,140,468.89/395,573.47
  6. Step 6: Final answer
    x = 172,640.85

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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.