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Finding the Fourth Proportional to 156,283.48, 215,672.22 and 84,663.44

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Solution

The fourth proportional to 156,283.48, 215,672.22 and 84,663.44 is: 116,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,283.48 : 215,672.22 = 84,663.44 : x
  2. Step 2: Convert to fraction form
    156,283.48/215,672.22 = 84,663.44/x
  3. Step 3: Cross multiply
    156,283.48x = 215,672.22 × 84,663.44
  4. Step 4: Simplify right side
    156,283.48x = 18,259,552,057.64
  5. Step 5: Solve for x
    x = 18,259,552,057.64/156,283.48
  6. Step 6: Final answer
    x = 116,836.10

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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.