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Finding the Third Proportional to 31,116,609,981 and 66,952,628,455.50

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Solution

The third proportional to 31,116,609,981 and 66,952,628,455.50 is: 144,059,859,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,116,609,981 : 66,952,628,455.50 = 66,952,628,455.50 : x
  2. Step 2: Convert to fraction form
    31,116,609,981/66,952,628,455.50 = 66,952,628,455.50/x
  3. Step 3: Cross multiply
    31,116,609,981x = 66,952,628,455.50 × 66,952,628,455.50
  4. Step 4: Simplify right side
    31,116,609,981x = 4,482,654,457,100,228,362,240
  5. Step 5: Solve for x
    x = 4,482,654,457,100,228,362,240/31,116,609,981
  6. Step 6: Final answer
    x = 144,059,859,343.21

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.