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Finding the Fourth Proportional to 108,648.80, 162,778.80 and 93,096.80

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Solution

The fourth proportional to 108,648.80, 162,778.80 and 93,096.80 is: 139,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,648.80 : 162,778.80 = 93,096.80 : x
  2. Step 2: Convert to fraction form
    108,648.80/162,778.80 = 93,096.80/x
  3. Step 3: Cross multiply
    108,648.80x = 162,778.80 × 93,096.80
  4. Step 4: Simplify right side
    108,648.80x = 15,154,185,387.84
  5. Step 5: Solve for x
    x = 15,154,185,387.84/108,648.80
  6. Step 6: Final answer
    x = 139,478.63

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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.