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Finding the Fourth Proportional to 395,387.52, 593,155.80 and 158,748.72

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Solution

The fourth proportional to 395,387.52, 593,155.80 and 158,748.72 is: 238,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,387.52 : 593,155.80 = 158,748.72 : x
  2. Step 2: Convert to fraction form
    395,387.52/593,155.80 = 158,748.72/x
  3. Step 3: Cross multiply
    395,387.52x = 593,155.80 × 158,748.72
  4. Step 4: Simplify right side
    395,387.52x = 94,162,724,010.58
  5. Step 5: Solve for x
    x = 94,162,724,010.58/395,387.52
  6. Step 6: Final answer
    x = 238,153.00

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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.