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Finding the Fourth Proportional to 395,303.13, 593,065.55 and 158,811.88

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Solution

The fourth proportional to 395,303.13, 593,065.55 and 158,811.88 is: 238,262.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,303.13 : 593,065.55 = 158,811.88 : x
  2. Step 2: Convert to fraction form
    395,303.13/593,065.55 = 158,811.88/x
  3. Step 3: Cross multiply
    395,303.13x = 593,065.55 × 158,811.88
  4. Step 4: Simplify right side
    395,303.13x = 94,185,854,958.73
  5. Step 5: Solve for x
    x = 94,185,854,958.73/395,303.13
  6. Step 6: Final answer
    x = 238,262.36

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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.