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Finding the Fourth Proportional to 116,679.96, 161,014.62 and 65,695.32

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Solution

The fourth proportional to 116,679.96, 161,014.62 and 65,695.32 is: 90,657.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,679.96 : 161,014.62 = 65,695.32 : x
  2. Step 2: Convert to fraction form
    116,679.96/161,014.62 = 65,695.32/x
  3. Step 3: Cross multiply
    116,679.96x = 161,014.62 × 65,695.32
  4. Step 4: Simplify right side
    116,679.96x = 10,577,906,985.58
  5. Step 5: Solve for x
    x = 10,577,906,985.58/116,679.96
  6. Step 6: Final answer
    x = 90,657.44

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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.