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Finding the Fourth Proportional to 113,843.26, 157,106.17 and 62,855.82

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Solution

The fourth proportional to 113,843.26, 157,106.17 and 62,855.82 is: 86,742.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,843.26 : 157,106.17 = 62,855.82 : x
  2. Step 2: Convert to fraction form
    113,843.26/157,106.17 = 62,855.82/x
  3. Step 3: Cross multiply
    113,843.26x = 157,106.17 × 62,855.82
  4. Step 4: Simplify right side
    113,843.26x = 9,875,037,142.41
  5. Step 5: Solve for x
    x = 9,875,037,142.41/113,843.26
  6. Step 6: Final answer
    x = 86,742.40

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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.