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Finding the Fourth Proportional to 110,656.32, 152,584.50 and 74,784.03

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Solution

The fourth proportional to 110,656.32, 152,584.50 and 74,784.03 is: 103,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,656.32 : 152,584.50 = 74,784.03 : x
  2. Step 2: Convert to fraction form
    110,656.32/152,584.50 = 74,784.03/x
  3. Step 3: Cross multiply
    110,656.32x = 152,584.50 × 74,784.03
  4. Step 4: Simplify right side
    110,656.32x = 11,410,883,825.54
  5. Step 5: Solve for x
    x = 11,410,883,825.54/110,656.32
  6. Step 6: Final answer
    x = 103,120.04

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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.