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Finding the Fourth Proportional to 108,525.60, 149,758.20 and 60,768

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Solution

The fourth proportional to 108,525.60, 149,758.20 and 60,768 is: 83,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,525.60 : 149,758.20 = 60,768 : x
  2. Step 2: Convert to fraction form
    108,525.60/149,758.20 = 60,768/x
  3. Step 3: Cross multiply
    108,525.60x = 149,758.20 × 60,768
  4. Step 4: Simplify right side
    108,525.60x = 9,100,506,297.60
  5. Step 5: Solve for x
    x = 9,100,506,297.60/108,525.60
  6. Step 6: Final answer
    x = 83,855.85

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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.