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Finding the Fourth Proportional to 118,469.52, 163,487.51 and 64,754.50

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Solution

The fourth proportional to 118,469.52, 163,487.51 and 64,754.50 is: 89,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,469.52 : 163,487.51 = 64,754.50 : x
  2. Step 2: Convert to fraction form
    118,469.52/163,487.51 = 64,754.50/x
  3. Step 3: Cross multiply
    118,469.52x = 163,487.51 × 64,754.50
  4. Step 4: Simplify right side
    118,469.52x = 10,586,551,966.30
  5. Step 5: Solve for x
    x = 10,586,551,966.30/118,469.52
  6. Step 6: Final answer
    x = 89,360.98

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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.