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Finding the Fourth Proportional to 119,695.42, 165,172.26 and 65,977.66

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Solution

The fourth proportional to 119,695.42, 165,172.26 and 65,977.66 is: 91,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,695.42 : 165,172.26 = 65,977.66 : x
  2. Step 2: Convert to fraction form
    119,695.42/165,172.26 = 65,977.66/x
  3. Step 3: Cross multiply
    119,695.42x = 165,172.26 × 65,977.66
  4. Step 4: Simplify right side
    119,695.42x = 10,897,679,211.71
  5. Step 5: Solve for x
    x = 10,897,679,211.71/119,695.42
  6. Step 6: Final answer
    x = 91,045.08

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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.