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Finding the Fourth Proportional to 112,995, 155,932.68 and 62,008.60

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Solution

The fourth proportional to 112,995, 155,932.68 and 62,008.60 is: 85,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,995 : 155,932.68 = 62,008.60 : x
  2. Step 2: Convert to fraction form
    112,995/155,932.68 = 62,008.60/x
  3. Step 3: Cross multiply
    112,995x = 155,932.68 × 62,008.60
  4. Step 4: Simplify right side
    112,995x = 9,669,167,181.05
  5. Step 5: Solve for x
    x = 9,669,167,181.05/112,995
  6. Step 6: Final answer
    x = 85,571.64

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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.