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Finding the Fourth Proportional to 113,792.30, 156,965.72 and 73,529.80

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Solution

The fourth proportional to 113,792.30, 156,965.72 and 73,529.80 is: 101,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,792.30 : 156,965.72 = 73,529.80 : x
  2. Step 2: Convert to fraction form
    113,792.30/156,965.72 = 73,529.80/x
  3. Step 3: Cross multiply
    113,792.30x = 156,965.72 × 73,529.80
  4. Step 4: Simplify right side
    113,792.30x = 11,541,657,998.46
  5. Step 5: Solve for x
    x = 11,541,657,998.46/113,792.30
  6. Step 6: Final answer
    x = 101,427.41

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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.