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Finding the Fourth Proportional to 556,375.70, 834,429.90 and 157,053.80

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Solution

The fourth proportional to 556,375.70, 834,429.90 and 157,053.80 is: 235,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,375.70 : 834,429.90 = 157,053.80 : x
  2. Step 2: Convert to fraction form
    556,375.70/834,429.90 = 157,053.80/x
  3. Step 3: Cross multiply
    556,375.70x = 834,429.90 × 157,053.80
  4. Step 4: Simplify right side
    556,375.70x = 131,050,386,628.62
  5. Step 5: Solve for x
    x = 131,050,386,628.62/556,375.70
  6. Step 6: Final answer
    x = 235,542.97

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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.