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Finding the Fourth Proportional to 168,083.52, 231,955.30 and 91,602.64

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Solution

The fourth proportional to 168,083.52, 231,955.30 and 91,602.64 is: 126,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,083.52 : 231,955.30 = 91,602.64 : x
  2. Step 2: Convert to fraction form
    168,083.52/231,955.30 = 91,602.64/x
  3. Step 3: Cross multiply
    168,083.52x = 231,955.30 × 91,602.64
  4. Step 4: Simplify right side
    168,083.52x = 21,247,717,841.99
  5. Step 5: Solve for x
    x = 21,247,717,841.99/168,083.52
  6. Step 6: Final answer
    x = 126,411.67

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1.5x scale

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.