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Finding the Fourth Proportional to 74,669.96, 112,005.22 and 51,225.32

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Solution

The fourth proportional to 74,669.96, 112,005.22 and 51,225.32 is: 76,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,669.96 : 112,005.22 = 51,225.32 : x
  2. Step 2: Convert to fraction form
    74,669.96/112,005.22 = 51,225.32/x
  3. Step 3: Cross multiply
    74,669.96x = 112,005.22 × 51,225.32
  4. Step 4: Simplify right side
    74,669.96x = 5,737,503,236.17
  5. Step 5: Solve for x
    x = 5,737,503,236.17/74,669.96
  6. Step 6: Final answer
    x = 76,838.17

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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.