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Finding the Fourth Proportional to 176,381.75, 243,313.52 and 111,736.94

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Solution

The fourth proportional to 176,381.75, 243,313.52 and 111,736.94 is: 154,137.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,381.75 : 243,313.52 = 111,736.94 : x
  2. Step 2: Convert to fraction form
    176,381.75/243,313.52 = 111,736.94/x
  3. Step 3: Cross multiply
    176,381.75x = 243,313.52 × 111,736.94
  4. Step 4: Simplify right side
    176,381.75x = 27,187,106,410.18
  5. Step 5: Solve for x
    x = 27,187,106,410.18/176,381.75
  6. Step 6: Final answer
    x = 154,137.86

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1.5x scale

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.