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Finding the Fourth Proportional to 113,661.74, 156,822.44 and 64,602.67

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Solution

The fourth proportional to 113,661.74, 156,822.44 and 64,602.67 is: 89,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,661.74 : 156,822.44 = 64,602.67 : x
  2. Step 2: Convert to fraction form
    113,661.74/156,822.44 = 64,602.67/x
  3. Step 3: Cross multiply
    113,661.74x = 156,822.44 × 64,602.67
  4. Step 4: Simplify right side
    113,661.74x = 10,131,148,339.91
  5. Step 5: Solve for x
    x = 10,131,148,339.91/113,661.74
  6. Step 6: Final answer
    x = 89,134.20

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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.