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Finding the Fourth Proportional to 81,602.84, 112,611.66 and 45,793.02

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Solution

The fourth proportional to 81,602.84, 112,611.66 and 45,793.02 is: 63,194.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,602.84 : 112,611.66 = 45,793.02 : x
  2. Step 2: Convert to fraction form
    81,602.84/112,611.66 = 45,793.02/x
  3. Step 3: Cross multiply
    81,602.84x = 112,611.66 × 45,793.02
  4. Step 4: Simplify right side
    81,602.84x = 5,156,827,998.61
  5. Step 5: Solve for x
    x = 5,156,827,998.61/81,602.84
  6. Step 6: Final answer
    x = 63,194.22

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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.