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Finding the Fourth Proportional to 367,428.56, 551,145.80 and 101,203.76

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Solution

The fourth proportional to 367,428.56, 551,145.80 and 101,203.76 is: 151,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,428.56 : 551,145.80 = 101,203.76 : x
  2. Step 2: Convert to fraction form
    367,428.56/551,145.80 = 101,203.76/x
  3. Step 3: Cross multiply
    367,428.56x = 551,145.80 × 101,203.76
  4. Step 4: Simplify right side
    367,428.56x = 55,778,027,268.21
  5. Step 5: Solve for x
    x = 55,778,027,268.21/367,428.56
  6. Step 6: Final answer
    x = 151,806.46

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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.