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Finding the Fourth Proportional to 119,833.88, 165,430.67 and 74,526.46

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Solution

The fourth proportional to 119,833.88, 165,430.67 and 74,526.46 is: 102,883.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,833.88 : 165,430.67 = 74,526.46 : x
  2. Step 2: Convert to fraction form
    119,833.88/165,430.67 = 74,526.46/x
  3. Step 3: Cross multiply
    119,833.88x = 165,430.67 × 74,526.46
  4. Step 4: Simplify right side
    119,833.88x = 12,328,962,390.58
  5. Step 5: Solve for x
    x = 12,328,962,390.58/119,833.88
  6. Step 6: Final answer
    x = 102,883.78

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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.