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Finding the Fourth Proportional to 119,907.77, 165,473.12 and 66,192.66

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Solution

The fourth proportional to 119,907.77, 165,473.12 and 66,192.66 is: 91,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,907.77 : 165,473.12 = 66,192.66 : x
  2. Step 2: Convert to fraction form
    119,907.77/165,473.12 = 66,192.66/x
  3. Step 3: Cross multiply
    119,907.77x = 165,473.12 × 66,192.66
  4. Step 4: Simplify right side
    119,907.77x = 10,953,105,640.34
  5. Step 5: Solve for x
    x = 10,953,105,640.34/119,907.77
  6. Step 6: Final answer
    x = 91,346.09

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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.