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Finding the Fourth Proportional to 117,310,979.40, 164,575,493.40 and 117,310,979.40

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Solution

The fourth proportional to 117,310,979.40, 164,575,493.40 and 117,310,979.40 is: 164,575,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,310,979.40 : 164,575,493.40 = 117,310,979.40 : x
  2. Step 2: Convert to fraction form
    117,310,979.40/164,575,493.40 = 117,310,979.40/x
  3. Step 3: Cross multiply
    117,310,979.40x = 164,575,493.40 × 117,310,979.40
  4. Step 4: Simplify right side
    117,310,979.40x = 19,306,512,315,992,236
  5. Step 5: Solve for x
    x = 19,306,512,315,992,236/117,310,979.40
  6. Step 6: Final answer
    x = 164,575,493.40

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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.