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Finding the Fourth Proportional to 117,797.75, 162,560.90 and 64,805.75

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Solution

The fourth proportional to 117,797.75, 162,560.90 and 64,805.75 is: 89,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,797.75 : 162,560.90 = 64,805.75 : x
  2. Step 2: Convert to fraction form
    117,797.75/162,560.90 = 64,805.75/x
  3. Step 3: Cross multiply
    117,797.75x = 162,560.90 × 64,805.75
  4. Step 4: Simplify right side
    117,797.75x = 10,534,881,045.18
  5. Step 5: Solve for x
    x = 10,534,881,045.18/117,797.75
  6. Step 6: Final answer
    x = 89,431.94

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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.