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Finding the Fourth Proportional to 92,904.84, 139,585.14 and 59,638.68

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Solution

The fourth proportional to 92,904.84, 139,585.14 and 59,638.68 is: 89,604.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,904.84 : 139,585.14 = 59,638.68 : x
  2. Step 2: Convert to fraction form
    92,904.84/139,585.14 = 59,638.68/x
  3. Step 3: Cross multiply
    92,904.84x = 139,585.14 × 59,638.68
  4. Step 4: Simplify right side
    92,904.84x = 8,324,673,497.22
  5. Step 5: Solve for x
    x = 8,324,673,497.22/92,904.84
  6. Step 6: Final answer
    x = 89,604.30

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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.