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Finding the Fourth Proportional to 119,706.93, 165,194.64 and 65,994.21

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Solution

The fourth proportional to 119,706.93, 165,194.64 and 65,994.21 is: 91,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,706.93 : 165,194.64 = 65,994.21 : x
  2. Step 2: Convert to fraction form
    119,706.93/165,194.64 = 65,994.21/x
  3. Step 3: Cross multiply
    119,706.93x = 165,194.64 × 65,994.21
  4. Step 4: Simplify right side
    119,706.93x = 10,901,889,763.03
  5. Step 5: Solve for x
    x = 10,901,889,763.03/119,706.93
  6. Step 6: Final answer
    x = 91,071.50

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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.