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Finding the Fourth Proportional to 98,599.50, 136,067.31 and 53,887.50

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Solution

The fourth proportional to 98,599.50, 136,067.31 and 53,887.50 is: 74,364.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,599.50 : 136,067.31 = 53,887.50 : x
  2. Step 2: Convert to fraction form
    98,599.50/136,067.31 = 53,887.50/x
  3. Step 3: Cross multiply
    98,599.50x = 136,067.31 × 53,887.50
  4. Step 4: Simplify right side
    98,599.50x = 7,332,327,167.63
  5. Step 5: Solve for x
    x = 7,332,327,167.63/98,599.50
  6. Step 6: Final answer
    x = 74,364.75

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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.