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Finding the Fourth Proportional to 120,802.46, 166,700.76 and 67,084.07

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Solution

The fourth proportional to 120,802.46, 166,700.76 and 67,084.07 is: 92,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,802.46 : 166,700.76 = 67,084.07 : x
  2. Step 2: Convert to fraction form
    120,802.46/166,700.76 = 67,084.07/x
  3. Step 3: Cross multiply
    120,802.46x = 166,700.76 × 67,084.07
  4. Step 4: Simplify right side
    120,802.46x = 11,182,964,619.39
  5. Step 5: Solve for x
    x = 11,182,964,619.39/120,802.46
  6. Step 6: Final answer
    x = 92,572.33

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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.