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Finding the Fourth Proportional to 108,665.46, 162,964.43 and 52,470.63

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Solution

The fourth proportional to 108,665.46, 162,964.43 and 52,470.63 is: 78,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,665.46 : 162,964.43 = 52,470.63 : x
  2. Step 2: Convert to fraction form
    108,665.46/162,964.43 = 52,470.63/x
  3. Step 3: Cross multiply
    108,665.46x = 162,964.43 × 52,470.63
  4. Step 4: Simplify right side
    108,665.46x = 8,550,845,232.52
  5. Step 5: Solve for x
    x = 8,550,845,232.52/108,665.46
  6. Step 6: Final answer
    x = 78,689.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.