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Finding the Fourth Proportional to 119,770.62, 165,275.76 and 66,055.98

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Solution

The fourth proportional to 119,770.62, 165,275.76 and 66,055.98 is: 91,153.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,770.62 : 165,275.76 = 66,055.98 : x
  2. Step 2: Convert to fraction form
    119,770.62/165,275.76 = 66,055.98/x
  3. Step 3: Cross multiply
    119,770.62x = 165,275.76 × 66,055.98
  4. Step 4: Simplify right side
    119,770.62x = 10,917,452,297.04
  5. Step 5: Solve for x
    x = 10,917,452,297.04/119,770.62
  6. Step 6: Final answer
    x = 91,153.01

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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.