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Finding the Fourth Proportional to 364,990.95, 547,319.70 and 112,183.47

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Solution

The fourth proportional to 364,990.95, 547,319.70 and 112,183.47 is: 168,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,990.95 : 547,319.70 = 112,183.47 : x
  2. Step 2: Convert to fraction form
    364,990.95/547,319.70 = 112,183.47/x
  3. Step 3: Cross multiply
    364,990.95x = 547,319.70 × 112,183.47
  4. Step 4: Simplify right side
    364,990.95x = 61,400,223,145.36
  5. Step 5: Solve for x
    x = 61,400,223,145.36/364,990.95
  6. Step 6: Final answer
    x = 168,223.96

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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.