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Finding the Fourth Proportional to 114,671.37, 171,916.94 and 72,462.68

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Solution

The fourth proportional to 114,671.37, 171,916.94 and 72,462.68 is: 108,637.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,671.37 : 171,916.94 = 72,462.68 : x
  2. Step 2: Convert to fraction form
    114,671.37/171,916.94 = 72,462.68/x
  3. Step 3: Cross multiply
    114,671.37x = 171,916.94 × 72,462.68
  4. Step 4: Simplify right side
    114,671.37x = 12,457,561,531.37
  5. Step 5: Solve for x
    x = 12,457,561,531.37/114,671.37
  6. Step 6: Final answer
    x = 108,637.07

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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.