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Finding the Fourth Proportional to 118,853.33, 164,018.90 and 65,137.19

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Solution

The fourth proportional to 118,853.33, 164,018.90 and 65,137.19 is: 89,890.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,853.33 : 164,018.90 = 65,137.19 : x
  2. Step 2: Convert to fraction form
    118,853.33/164,018.90 = 65,137.19/x
  3. Step 3: Cross multiply
    118,853.33x = 164,018.90 × 65,137.19
  4. Step 4: Simplify right side
    118,853.33x = 10,683,729,927.21
  5. Step 5: Solve for x
    x = 10,683,729,927.21/118,853.33
  6. Step 6: Final answer
    x = 89,890.03

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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.