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Finding the Fourth Proportional to 89,893.84, 124,051.44 and 49,611.40

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Solution

The fourth proportional to 89,893.84, 124,051.44 and 49,611.40 is: 68,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,893.84 : 124,051.44 = 49,611.40 : x
  2. Step 2: Convert to fraction form
    89,893.84/124,051.44 = 49,611.40/x
  3. Step 3: Cross multiply
    89,893.84x = 124,051.44 × 49,611.40
  4. Step 4: Simplify right side
    89,893.84x = 6,154,365,610.42
  5. Step 5: Solve for x
    x = 6,154,365,610.42/89,893.84
  6. Step 6: Final answer
    x = 68,462.60

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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.