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Finding the Fourth Proportional to 99,568.26, 137,404.13 and 54,856.26

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Solution

The fourth proportional to 99,568.26, 137,404.13 and 54,856.26 is: 75,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,568.26 : 137,404.13 = 54,856.26 : x
  2. Step 2: Convert to fraction form
    99,568.26/137,404.13 = 54,856.26/x
  3. Step 3: Cross multiply
    99,568.26x = 137,404.13 × 54,856.26
  4. Step 4: Simplify right side
    99,568.26x = 7,537,476,680.35
  5. Step 5: Solve for x
    x = 7,537,476,680.35/99,568.26
  6. Step 6: Final answer
    x = 75,701.60

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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.