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Finding the Fourth Proportional to 119,326.31, 164,666.10 and 65,610.95

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Solution

The fourth proportional to 119,326.31, 164,666.10 and 65,610.95 is: 90,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,326.31 : 164,666.10 = 65,610.95 : x
  2. Step 2: Convert to fraction form
    119,326.31/164,666.10 = 65,610.95/x
  3. Step 3: Cross multiply
    119,326.31x = 164,666.10 × 65,610.95
  4. Step 4: Simplify right side
    119,326.31x = 10,803,899,419.42
  5. Step 5: Solve for x
    x = 10,803,899,419.42/119,326.31
  6. Step 6: Final answer
    x = 90,540.80

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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.