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Finding the Fourth Proportional to 93,314.70, 140,037.66 and 84,391.74

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Solution

The fourth proportional to 93,314.70, 140,037.66 and 84,391.74 is: 126,646.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,314.70 : 140,037.66 = 84,391.74 : x
  2. Step 2: Convert to fraction form
    93,314.70/140,037.66 = 84,391.74/x
  3. Step 3: Cross multiply
    93,314.70x = 140,037.66 × 84,391.74
  4. Step 4: Simplify right side
    93,314.70x = 11,818,021,792.93
  5. Step 5: Solve for x
    x = 11,818,021,792.93/93,314.70
  6. Step 6: Final answer
    x = 126,646.95

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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.