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Finding the Fourth Proportional to 81,616.98, 112,540.47 and 52,898.84

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Solution

The fourth proportional to 81,616.98, 112,540.47 and 52,898.84 is: 72,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,616.98 : 112,540.47 = 52,898.84 : x
  2. Step 2: Convert to fraction form
    81,616.98/112,540.47 = 52,898.84/x
  3. Step 3: Cross multiply
    81,616.98x = 112,540.47 × 52,898.84
  4. Step 4: Simplify right side
    81,616.98x = 5,953,259,753.35
  5. Step 5: Solve for x
    x = 5,953,259,753.35/81,616.98
  6. Step 6: Final answer
    x = 72,941.44

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1.5x scale

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.