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Finding the Fourth Proportional to 110,963.64, 153,121.94 and 63,208.20

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Solution

The fourth proportional to 110,963.64, 153,121.94 and 63,208.20 is: 87,222.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,963.64 : 153,121.94 = 63,208.20 : x
  2. Step 2: Convert to fraction form
    110,963.64/153,121.94 = 63,208.20/x
  3. Step 3: Cross multiply
    110,963.64x = 153,121.94 × 63,208.20
  4. Step 4: Simplify right side
    110,963.64x = 9,678,562,207.91
  5. Step 5: Solve for x
    x = 9,678,562,207.91/110,963.64
  6. Step 6: Final answer
    x = 87,222.83

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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.