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Finding the Fourth Proportional to 362,115.80, 543,303.30 and 151,818.20

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Solution

The fourth proportional to 362,115.80, 543,303.30 and 151,818.20 is: 227,781.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,115.80 : 543,303.30 = 151,818.20 : x
  2. Step 2: Convert to fraction form
    362,115.80/543,303.30 = 151,818.20/x
  3. Step 3: Cross multiply
    362,115.80x = 543,303.30 × 151,818.20
  4. Step 4: Simplify right side
    362,115.80x = 82,483,329,060.06
  5. Step 5: Solve for x
    x = 82,483,329,060.06/362,115.80
  6. Step 6: Final answer
    x = 227,781.64

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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.