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Finding the Fourth Proportional to 111,259.44, 153,486.56 and 98,525.60

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Solution

The fourth proportional to 111,259.44, 153,486.56 and 98,525.60 is: 135,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,259.44 : 153,486.56 = 98,525.60 : x
  2. Step 2: Convert to fraction form
    111,259.44/153,486.56 = 98,525.60/x
  3. Step 3: Cross multiply
    111,259.44x = 153,486.56 × 98,525.60
  4. Step 4: Simplify right side
    111,259.44x = 15,122,355,415.94
  5. Step 5: Solve for x
    x = 15,122,355,415.94/111,259.44
  6. Step 6: Final answer
    x = 135,919.75

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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.