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Finding the Third Proportional to 46,368.50 and 100,129

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Solution

The third proportional to 46,368.50 and 100,129 is: 216,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,368.50 : 100,129 = 100,129 : x
  2. Step 2: Convert to fraction form
    46,368.50/100,129 = 100,129/x
  3. Step 3: Cross multiply
    46,368.50x = 100,129 × 100,129
  4. Step 4: Simplify right side
    46,368.50x = 10,025,816,641
  5. Step 5: Solve for x
    x = 10,025,816,641/46,368.50
  6. Step 6: Final answer
    x = 216,220.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.