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Finding the Fourth Proportional to 118,773,021.60, 166,508,978.40 and 118,773,021.60

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Solution

The fourth proportional to 118,773,021.60, 166,508,978.40 and 118,773,021.60 is: 166,508,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,773,021.60 : 166,508,978.40 = 118,773,021.60 : x
  2. Step 2: Convert to fraction form
    118,773,021.60/166,508,978.40 = 118,773,021.60/x
  3. Step 3: Cross multiply
    118,773,021.60x = 166,508,978.40 × 118,773,021.60
  4. Step 4: Simplify right side
    118,773,021.60x = 19,776,774,488,097,132
  5. Step 5: Solve for x
    x = 19,776,774,488,097,132/118,773,021.60
  6. Step 6: Final answer
    x = 166,508,978.40

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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.