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Finding the Fourth Proportional to 116,633.92, 160,948.92 and 66,331.84

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Solution

The fourth proportional to 116,633.92, 160,948.92 and 66,331.84 is: 91,534.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,633.92 : 160,948.92 = 66,331.84 : x
  2. Step 2: Convert to fraction form
    116,633.92/160,948.92 = 66,331.84/x
  3. Step 3: Cross multiply
    116,633.92x = 160,948.92 × 66,331.84
  4. Step 4: Simplify right side
    116,633.92x = 10,676,038,009.61
  5. Step 5: Solve for x
    x = 10,676,038,009.61/116,633.92
  6. Step 6: Final answer
    x = 91,534.59

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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.