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Finding the Fourth Proportional to 556,079.64, 834,168.66 and 156,723.96

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Solution

The fourth proportional to 556,079.64, 834,168.66 and 156,723.96 is: 235,099.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,079.64 : 834,168.66 = 156,723.96 : x
  2. Step 2: Convert to fraction form
    556,079.64/834,168.66 = 156,723.96/x
  3. Step 3: Cross multiply
    556,079.64x = 834,168.66 × 156,723.96
  4. Step 4: Simplify right side
    556,079.64x = 130,734,215,703.09
  5. Step 5: Solve for x
    x = 130,734,215,703.09/556,079.64
  6. Step 6: Final answer
    x = 235,099.81

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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.