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Finding the Fourth Proportional to 98,732.89, 136,250.97 and 53,410.76

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Solution

The fourth proportional to 98,732.89, 136,250.97 and 53,410.76 is: 73,706.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,732.89 : 136,250.97 = 53,410.76 : x
  2. Step 2: Convert to fraction form
    98,732.89/136,250.97 = 53,410.76/x
  3. Step 3: Cross multiply
    98,732.89x = 136,250.97 × 53,410.76
  4. Step 4: Simplify right side
    98,732.89x = 7,277,267,858.44
  5. Step 5: Solve for x
    x = 7,277,267,858.44/98,732.89
  6. Step 6: Final answer
    x = 73,706.62

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1.5x scale

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.