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Finding the Fourth Proportional to 113,636.16, 156,823.24 and 63,335.52

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Solution

The fourth proportional to 113,636.16, 156,823.24 and 63,335.52 is: 87,405.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,636.16 : 156,823.24 = 63,335.52 : x
  2. Step 2: Convert to fraction form
    113,636.16/156,823.24 = 63,335.52/x
  3. Step 3: Cross multiply
    113,636.16x = 156,823.24 × 63,335.52
  4. Step 4: Simplify right side
    113,636.16x = 9,932,481,453.48
  5. Step 5: Solve for x
    x = 9,932,481,453.48/113,636.16
  6. Step 6: Final answer
    x = 87,405.99

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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.