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Finding the Fourth Proportional to 131,646, 197,484.56 and 46,230.72

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Solution

The fourth proportional to 131,646, 197,484.56 and 46,230.72 is: 69,351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,646 : 197,484.56 = 46,230.72 : x
  2. Step 2: Convert to fraction form
    131,646/197,484.56 = 46,230.72/x
  3. Step 3: Cross multiply
    131,646x = 197,484.56 × 46,230.72
  4. Step 4: Simplify right side
    131,646x = 9,129,853,397.68
  5. Step 5: Solve for x
    x = 9,129,853,397.68/131,646
  6. Step 6: Final answer
    x = 69,351.54

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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.