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Finding the Fourth Proportional to 116,698.70, 161,037.64 and 68,956.49

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Solution

The fourth proportional to 116,698.70, 161,037.64 and 68,956.49 is: 95,156.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,698.70 : 161,037.64 = 68,956.49 : x
  2. Step 2: Convert to fraction form
    116,698.70/161,037.64 = 68,956.49/x
  3. Step 3: Cross multiply
    116,698.70x = 161,037.64 × 68,956.49
  4. Step 4: Simplify right side
    116,698.70x = 11,104,590,412.28
  5. Step 5: Solve for x
    x = 11,104,590,412.28/116,698.70
  6. Step 6: Final answer
    x = 95,156.08

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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.