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Finding the Fourth Proportional to 111,522.75, 153,899.57 and 63,774.47

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Solution

The fourth proportional to 111,522.75, 153,899.57 and 63,774.47 is: 88,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,522.75 : 153,899.57 = 63,774.47 : x
  2. Step 2: Convert to fraction form
    111,522.75/153,899.57 = 63,774.47/x
  3. Step 3: Cross multiply
    111,522.75x = 153,899.57 × 63,774.47
  4. Step 4: Simplify right side
    111,522.75x = 9,814,863,509.98
  5. Step 5: Solve for x
    x = 9,814,863,509.98/111,522.75
  6. Step 6: Final answer
    x = 88,007.72

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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.