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Finding the Fourth Proportional to 556,429.08, 834,652.26 and 135,712.92

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Solution

The fourth proportional to 556,429.08, 834,652.26 and 135,712.92 is: 203,571.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,429.08 : 834,652.26 = 135,712.92 : x
  2. Step 2: Convert to fraction form
    556,429.08/834,652.26 = 135,712.92/x
  3. Step 3: Cross multiply
    556,429.08x = 834,652.26 × 135,712.92
  4. Step 4: Simplify right side
    556,429.08x = 113,273,095,389.20
  5. Step 5: Solve for x
    x = 113,273,095,389.20/556,429.08
  6. Step 6: Final answer
    x = 203,571.49

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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.