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Finding the Fourth Proportional to 242,479.82, 363,719.73 and 84,709.64

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Solution

The fourth proportional to 242,479.82, 363,719.73 and 84,709.64 is: 127,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,479.82 : 363,719.73 = 84,709.64 : x
  2. Step 2: Convert to fraction form
    242,479.82/363,719.73 = 84,709.64/x
  3. Step 3: Cross multiply
    242,479.82x = 363,719.73 × 84,709.64
  4. Step 4: Simplify right side
    242,479.82x = 30,810,567,389.20
  5. Step 5: Solve for x
    x = 30,810,567,389.20/242,479.82
  6. Step 6: Final answer
    x = 127,064.46

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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.