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Finding the Fourth Proportional to 116,970.66, 161,435.30 and 65,993.85

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Solution

The fourth proportional to 116,970.66, 161,435.30 and 65,993.85 is: 91,080.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,970.66 : 161,435.30 = 65,993.85 : x
  2. Step 2: Convert to fraction form
    116,970.66/161,435.30 = 65,993.85/x
  3. Step 3: Cross multiply
    116,970.66x = 161,435.30 × 65,993.85
  4. Step 4: Simplify right side
    116,970.66x = 10,653,736,408.77
  5. Step 5: Solve for x
    x = 10,653,736,408.77/116,970.66
  6. Step 6: Final answer
    x = 91,080.42

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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.