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Finding the Fourth Proportional to 83,987,553, 115,902,824.76 and 45,356,385

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Solution

The fourth proportional to 83,987,553, 115,902,824.76 and 45,356,385 is: 62,591,812.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,987,553 : 115,902,824.76 = 45,356,385 : x
  2. Step 2: Convert to fraction form
    83,987,553/115,902,824.76 = 45,356,385/x
  3. Step 3: Cross multiply
    83,987,553x = 115,902,824.76 × 45,356,385
  4. Step 4: Simplify right side
    83,987,553x = 5,256,933,142,402,093
  5. Step 5: Solve for x
    x = 5,256,933,142,402,093/83,987,553
  6. Step 6: Final answer
    x = 62,591,812.17

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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.