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Finding the Fourth Proportional to 117,518,461.20, 164,695,906.80 and 117,518,461.20

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Solution

The fourth proportional to 117,518,461.20, 164,695,906.80 and 117,518,461.20 is: 164,695,906.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,518,461.20 : 164,695,906.80 = 117,518,461.20 : x
  2. Step 2: Convert to fraction form
    117,518,461.20/164,695,906.80 = 117,518,461.20/x
  3. Step 3: Cross multiply
    117,518,461.20x = 164,695,906.80 × 117,518,461.20
  4. Step 4: Simplify right side
    117,518,461.20x = 19,354,809,533,074,620
  5. Step 5: Solve for x
    x = 19,354,809,533,074,620/117,518,461.20
  6. Step 6: Final answer
    x = 164,695,906.80

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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.