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Finding the Fourth Proportional to 86,297, 119,092.74 and 52,756.52

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Solution

The fourth proportional to 86,297, 119,092.74 and 52,756.52 is: 72,805.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,297 : 119,092.74 = 52,756.52 : x
  2. Step 2: Convert to fraction form
    86,297/119,092.74 = 52,756.52/x
  3. Step 3: Cross multiply
    86,297x = 119,092.74 × 52,756.52
  4. Step 4: Simplify right side
    86,297x = 6,282,918,519.66
  5. Step 5: Solve for x
    x = 6,282,918,519.66/86,297
  6. Step 6: Final answer
    x = 72,805.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.