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Finding the Fourth Proportional to 111,481.84, 153,801.15 and 63,709.56

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Solution

The fourth proportional to 111,481.84, 153,801.15 and 63,709.56 is: 87,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,481.84 : 153,801.15 = 63,709.56 : x
  2. Step 2: Convert to fraction form
    111,481.84/153,801.15 = 63,709.56/x
  3. Step 3: Cross multiply
    111,481.84x = 153,801.15 × 63,709.56
  4. Step 4: Simplify right side
    111,481.84x = 9,798,603,355.08
  5. Step 5: Solve for x
    x = 9,798,603,355.08/111,481.84
  6. Step 6: Final answer
    x = 87,894.17

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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.