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Finding the Fourth Proportional to 118,537.40, 163,586.02 and 64,819.24

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Solution

The fourth proportional to 118,537.40, 163,586.02 and 64,819.24 is: 89,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,537.40 : 163,586.02 = 64,819.24 : x
  2. Step 2: Convert to fraction form
    118,537.40/163,586.02 = 64,819.24/x
  3. Step 3: Cross multiply
    118,537.40x = 163,586.02 × 64,819.24
  4. Step 4: Simplify right side
    118,537.40x = 10,603,521,491.02
  5. Step 5: Solve for x
    x = 10,603,521,491.02/118,537.40
  6. Step 6: Final answer
    x = 89,452.96

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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.