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Finding the Third Proportional to 121,160,882 and 187,964,085

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Solution

The third proportional to 121,160,882 and 187,964,085 is: 291,599,868.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,160,882 : 187,964,085 = 187,964,085 : x
  2. Step 2: Convert to fraction form
    121,160,882/187,964,085 = 187,964,085/x
  3. Step 3: Cross multiply
    121,160,882x = 187,964,085 × 187,964,085
  4. Step 4: Simplify right side
    121,160,882x = 35,330,497,249,887,224
  5. Step 5: Solve for x
    x = 35,330,497,249,887,224/121,160,882
  6. Step 6: Final answer
    x = 291,599,868.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.