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Finding the Fourth Proportional to 210,393.87, 315,590.85 and 52,622.34

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Solution

The fourth proportional to 210,393.87, 315,590.85 and 52,622.34 is: 78,933.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,393.87 : 315,590.85 = 52,622.34 : x
  2. Step 2: Convert to fraction form
    210,393.87/315,590.85 = 52,622.34/x
  3. Step 3: Cross multiply
    210,393.87x = 315,590.85 × 52,622.34
  4. Step 4: Simplify right side
    210,393.87x = 16,607,129,009.59
  5. Step 5: Solve for x
    x = 16,607,129,009.59/210,393.87
  6. Step 6: Final answer
    x = 78,933.52

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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.