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Finding the Fourth Proportional to 335,530.68, 503,406.72 and 136,018.86

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Solution

The fourth proportional to 335,530.68, 503,406.72 and 136,018.86 is: 204,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,530.68 : 503,406.72 = 136,018.86 : x
  2. Step 2: Convert to fraction form
    335,530.68/503,406.72 = 136,018.86/x
  3. Step 3: Cross multiply
    335,530.68x = 503,406.72 × 136,018.86
  4. Step 4: Simplify right side
    335,530.68x = 68,472,808,170.74
  5. Step 5: Solve for x
    x = 68,472,808,170.74/335,530.68
  6. Step 6: Final answer
    x = 204,073.17

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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.