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Finding the Fourth Proportional to 97,747.75, 134,891.90 and 53,035.75

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Solution

The fourth proportional to 97,747.75, 134,891.90 and 53,035.75 is: 73,189.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,747.75 : 134,891.90 = 53,035.75 : x
  2. Step 2: Convert to fraction form
    97,747.75/134,891.90 = 53,035.75/x
  3. Step 3: Cross multiply
    97,747.75x = 134,891.90 × 53,035.75
  4. Step 4: Simplify right side
    97,747.75x = 7,154,093,085.43
  5. Step 5: Solve for x
    x = 7,154,093,085.43/97,747.75
  6. Step 6: Final answer
    x = 73,189.34

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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.