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Finding the Fourth Proportional to 117,516,820.70, 164,693,610.10 and 117,516,820.70

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Solution

The fourth proportional to 117,516,820.70, 164,693,610.10 and 117,516,820.70 is: 164,693,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,516,820.70 : 164,693,610.10 = 117,516,820.70 : x
  2. Step 2: Convert to fraction form
    117,516,820.70/164,693,610.10 = 117,516,820.70/x
  3. Step 3: Cross multiply
    117,516,820.70x = 164,693,610.10 × 117,516,820.70
  4. Step 4: Simplify right side
    117,516,820.70x = 19,354,269,448,557,408
  5. Step 5: Solve for x
    x = 19,354,269,448,557,408/117,516,820.70
  6. Step 6: Final answer
    x = 164,693,610.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.