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Finding the Fourth Proportional to 119,897.91, 165,458.18 and 66,182.91

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Solution

The fourth proportional to 119,897.91, 165,458.18 and 66,182.91 is: 91,331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,897.91 : 165,458.18 = 66,182.91 : x
  2. Step 2: Convert to fraction form
    119,897.91/165,458.18 = 66,182.91/x
  3. Step 3: Cross multiply
    119,897.91x = 165,458.18 × 66,182.91
  4. Step 4: Simplify right side
    119,897.91x = 10,950,502,677.50
  5. Step 5: Solve for x
    x = 10,950,502,677.50/119,897.91
  6. Step 6: Final answer
    x = 91,331.89

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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.