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Finding the Fourth Proportional to 99,539.26, 137,364.16 and 54,827.26

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Solution

The fourth proportional to 99,539.26, 137,364.16 and 54,827.26 is: 75,661.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,539.26 : 137,364.16 = 54,827.26 : x
  2. Step 2: Convert to fraction form
    99,539.26/137,364.16 = 54,827.26/x
  3. Step 3: Cross multiply
    99,539.26x = 137,364.16 × 54,827.26
  4. Step 4: Simplify right side
    99,539.26x = 7,531,300,515.00
  5. Step 5: Solve for x
    x = 7,531,300,515.00/99,539.26
  6. Step 6: Final answer
    x = 75,661.61

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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.