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Finding the Fourth Proportional to 108,735.20, 162,901.20 and 61,848.80

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Solution

The fourth proportional to 108,735.20, 162,901.20 and 61,848.80 is: 92,658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,735.20 : 162,901.20 = 61,848.80 : x
  2. Step 2: Convert to fraction form
    108,735.20/162,901.20 = 61,848.80/x
  3. Step 3: Cross multiply
    108,735.20x = 162,901.20 × 61,848.80
  4. Step 4: Simplify right side
    108,735.20x = 10,075,243,738.56
  5. Step 5: Solve for x
    x = 10,075,243,738.56/108,735.20
  6. Step 6: Final answer
    x = 92,658.53

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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.