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Finding the Fourth Proportional to 98,887.96, 148,272.12 and 38,844.56

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Solution

The fourth proportional to 98,887.96, 148,272.12 and 38,844.56 is: 58,243.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,887.96 : 148,272.12 = 38,844.56 : x
  2. Step 2: Convert to fraction form
    98,887.96/148,272.12 = 38,844.56/x
  3. Step 3: Cross multiply
    98,887.96x = 148,272.12 × 38,844.56
  4. Step 4: Simplify right side
    98,887.96x = 5,759,565,261.67
  5. Step 5: Solve for x
    x = 5,759,565,261.67/98,887.96
  6. Step 6: Final answer
    x = 58,243.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.