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Finding the Fourth Proportional to 120,668.00, 181,001.93 and 71,094.11

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Solution

The fourth proportional to 120,668.00, 181,001.93 and 71,094.11 is: 106,641.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,668.00 : 181,001.93 = 71,094.11 : x
  2. Step 2: Convert to fraction form
    120,668.00/181,001.93 = 71,094.11/x
  3. Step 3: Cross multiply
    120,668.00x = 181,001.93 × 71,094.11
  4. Step 4: Simplify right side
    120,668.00x = 12,868,169,861.15
  5. Step 5: Solve for x
    x = 12,868,169,861.15/120,668.00
  6. Step 6: Final answer
    x = 106,641.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.