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Finding the Fourth Proportional to 210,464.88, 315,697.05 and 52,693.32

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Solution

The fourth proportional to 210,464.88, 315,697.05 and 52,693.32 is: 79,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,464.88 : 315,697.05 = 52,693.32 : x
  2. Step 2: Convert to fraction form
    210,464.88/315,697.05 = 52,693.32/x
  3. Step 3: Cross multiply
    210,464.88x = 315,697.05 × 52,693.32
  4. Step 4: Simplify right side
    210,464.88x = 16,635,123,836.75
  5. Step 5: Solve for x
    x = 16,635,123,836.75/210,464.88
  6. Step 6: Final answer
    x = 79,039.90

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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.