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Finding the Fourth Proportional to 119,887.37, 165,504.45 and 74,580.08

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Solution

The fourth proportional to 119,887.37, 165,504.45 and 74,580.08 is: 102,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,887.37 : 165,504.45 = 74,580.08 : x
  2. Step 2: Convert to fraction form
    119,887.37/165,504.45 = 74,580.08/x
  3. Step 3: Cross multiply
    119,887.37x = 165,504.45 × 74,580.08
  4. Step 4: Simplify right side
    119,887.37x = 12,343,335,166.85
  5. Step 5: Solve for x
    x = 12,343,335,166.85/119,887.37
  6. Step 6: Final answer
    x = 102,957.76

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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.