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Finding the Fourth Proportional to 119,339.26, 164,688.76 and 65,627.75

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Solution

The fourth proportional to 119,339.26, 164,688.76 and 65,627.75 is: 90,566.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,339.26 : 164,688.76 = 65,627.75 : x
  2. Step 2: Convert to fraction form
    119,339.26/164,688.76 = 65,627.75/x
  3. Step 3: Cross multiply
    119,339.26x = 164,688.76 × 65,627.75
  4. Step 4: Simplify right side
    119,339.26x = 10,808,153,262.85
  5. Step 5: Solve for x
    x = 10,808,153,262.85/119,339.26
  6. Step 6: Final answer
    x = 90,566.62

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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.