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Finding the Fourth Proportional to 116,459.79, 160,710.75 and 65,474.66

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Solution

The fourth proportional to 116,459.79, 160,710.75 and 65,474.66 is: 90,352.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,459.79 : 160,710.75 = 65,474.66 : x
  2. Step 2: Convert to fraction form
    116,459.79/160,710.75 = 65,474.66/x
  3. Step 3: Cross multiply
    116,459.79x = 160,710.75 × 65,474.66
  4. Step 4: Simplify right side
    116,459.79x = 10,522,481,476.50
  5. Step 5: Solve for x
    x = 10,522,481,476.50/116,459.79
  6. Step 6: Final answer
    x = 90,352.92

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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.