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Finding the Third Proportional to 66,203 and 147,117.50

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Solution

The third proportional to 66,203 and 147,117.50 is: 326,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203 : 147,117.50 = 147,117.50 : x
  2. Step 2: Convert to fraction form
    66,203/147,117.50 = 147,117.50/x
  3. Step 3: Cross multiply
    66,203x = 147,117.50 × 147,117.50
  4. Step 4: Simplify right side
    66,203x = 21,643,558,806.25
  5. Step 5: Solve for x
    x = 21,643,558,806.25/66,203
  6. Step 6: Final answer
    x = 326,927.16

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.