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Finding the Fourth Proportional to 395,041.40, 592,043.70 and 158,190.20

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Solution

The fourth proportional to 395,041.40, 592,043.70 and 158,190.20 is: 237,077.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,041.40 : 592,043.70 = 158,190.20 : x
  2. Step 2: Convert to fraction form
    395,041.40/592,043.70 = 158,190.20/x
  3. Step 3: Cross multiply
    395,041.40x = 592,043.70 × 158,190.20
  4. Step 4: Simplify right side
    395,041.40x = 93,655,511,311.74
  5. Step 5: Solve for x
    x = 93,655,511,311.74/395,041.40
  6. Step 6: Final answer
    x = 237,077.71

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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.