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Finding the Fourth Proportional to 108,702.80, 162,859.80 and 93,150.80

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Solution

The fourth proportional to 108,702.80, 162,859.80 and 93,150.80 is: 139,559.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,702.80 : 162,859.80 = 93,150.80 : x
  2. Step 2: Convert to fraction form
    108,702.80/162,859.80 = 93,150.80/x
  3. Step 3: Cross multiply
    108,702.80x = 162,859.80 × 93,150.80
  4. Step 4: Simplify right side
    108,702.80x = 15,170,520,657.84
  5. Step 5: Solve for x
    x = 15,170,520,657.84/108,702.80
  6. Step 6: Final answer
    x = 139,559.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.