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Finding the Fourth Proportional to 111,077.73, 153,283.46 and 63,346.44

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Solution

The fourth proportional to 111,077.73, 153,283.46 and 63,346.44 is: 87,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,077.73 : 153,283.46 = 63,346.44 : x
  2. Step 2: Convert to fraction form
    111,077.73/153,283.46 = 63,346.44/x
  3. Step 3: Cross multiply
    111,077.73x = 153,283.46 × 63,346.44
  4. Step 4: Simplify right side
    111,077.73x = 9,709,961,185.15
  5. Step 5: Solve for x
    x = 9,709,961,185.15/111,077.73
  6. Step 6: Final answer
    x = 87,415.91

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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.