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Finding the Fourth Proportional to 108,015.61, 149,068.74 and 60,270.04

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Solution

The fourth proportional to 108,015.61, 149,068.74 and 60,270.04 is: 83,176.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,015.61 : 149,068.74 = 60,270.04 : x
  2. Step 2: Convert to fraction form
    108,015.61/149,068.74 = 60,270.04/x
  3. Step 3: Cross multiply
    108,015.61x = 149,068.74 × 60,270.04
  4. Step 4: Simplify right side
    108,015.61x = 8,984,378,922.55
  5. Step 5: Solve for x
    x = 8,984,378,922.55/108,015.61
  6. Step 6: Final answer
    x = 83,176.67

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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.