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Finding the Fourth Proportional to 503,177.12, 754,680.93 and 143,322.68

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Solution

The fourth proportional to 503,177.12, 754,680.93 and 143,322.68 is: 214,959.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,177.12 : 754,680.93 = 143,322.68 : x
  2. Step 2: Convert to fraction form
    503,177.12/754,680.93 = 143,322.68/x
  3. Step 3: Cross multiply
    503,177.12x = 754,680.93 × 143,322.68
  4. Step 4: Simplify right side
    503,177.12x = 108,162,889,659.09
  5. Step 5: Solve for x
    x = 108,162,889,659.09/503,177.12
  6. Step 6: Final answer
    x = 214,959.87

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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.