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Finding the Fourth Proportional to 108,519.02, 162,777.02 and 65,834.62

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Solution

The fourth proportional to 108,519.02, 162,777.02 and 65,834.62 is: 98,751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,519.02 : 162,777.02 = 65,834.62 : x
  2. Step 2: Convert to fraction form
    108,519.02/162,777.02 = 65,834.62/x
  3. Step 3: Cross multiply
    108,519.02x = 162,777.02 × 65,834.62
  4. Step 4: Simplify right side
    108,519.02x = 10,716,363,130.73
  5. Step 5: Solve for x
    x = 10,716,363,130.73/108,519.02
  6. Step 6: Final answer
    x = 98,751.01

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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.