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Finding the Fourth Proportional to 395,643.47, 593,515.50 and 125,675.30

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Solution

The fourth proportional to 395,643.47, 593,515.50 and 125,675.30 is: 188,528.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,643.47 : 593,515.50 = 125,675.30 : x
  2. Step 2: Convert to fraction form
    395,643.47/593,515.50 = 125,675.30/x
  3. Step 3: Cross multiply
    395,643.47x = 593,515.50 × 125,675.30
  4. Step 4: Simplify right side
    395,643.47x = 74,590,234,921.20
  5. Step 5: Solve for x
    x = 74,590,234,921.20/395,643.47
  6. Step 6: Final answer
    x = 188,528.92

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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.