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Finding the Fourth Proportional to 116,688.88, 161,022.36 and 91,598.32

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Solution

The fourth proportional to 116,688.88, 161,022.36 and 91,598.32 is: 126,399.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,688.88 : 161,022.36 = 91,598.32 : x
  2. Step 2: Convert to fraction form
    116,688.88/161,022.36 = 91,598.32/x
  3. Step 3: Cross multiply
    116,688.88x = 161,022.36 × 91,598.32
  4. Step 4: Simplify right side
    116,688.88x = 14,749,377,658.44
  5. Step 5: Solve for x
    x = 14,749,377,658.44/116,688.88
  6. Step 6: Final answer
    x = 126,399.17

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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.