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Finding the Fourth Proportional to 111,044.71, 153,237.63 and 63,288.84

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Solution

The fourth proportional to 111,044.71, 153,237.63 and 63,288.84 is: 87,336.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,044.71 : 153,237.63 = 63,288.84 : x
  2. Step 2: Convert to fraction form
    111,044.71/153,237.63 = 63,288.84/x
  3. Step 3: Cross multiply
    111,044.71x = 153,237.63 × 63,288.84
  4. Step 4: Simplify right side
    111,044.71x = 9,698,231,847.05
  5. Step 5: Solve for x
    x = 9,698,231,847.05/111,044.71
  6. Step 6: Final answer
    x = 87,336.28

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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.