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Finding the Fourth Proportional to 104,615.61, 156,885.39 and 57,265.67

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Solution

The fourth proportional to 104,615.61, 156,885.39 and 57,265.67 is: 85,877.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.61 : 156,885.39 = 57,265.67 : x
  2. Step 2: Convert to fraction form
    104,615.61/156,885.39 = 57,265.67/x
  3. Step 3: Cross multiply
    104,615.61x = 156,885.39 × 57,265.67
  4. Step 4: Simplify right side
    104,615.61x = 8,984,146,187.13
  5. Step 5: Solve for x
    x = 8,984,146,187.13/104,615.61
  6. Step 6: Final answer
    x = 85,877.68

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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.