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Finding the Fourth Proportional to 363,792,714.15, 545,693,736.83 and 121,455,618.15

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Solution

The fourth proportional to 363,792,714.15, 545,693,736.83 and 121,455,618.15 is: 182,184,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,792,714.15 : 545,693,736.83 = 121,455,618.15 : x
  2. Step 2: Convert to fraction form
    363,792,714.15/545,693,736.83 = 121,455,618.15/x
  3. Step 3: Cross multiply
    363,792,714.15x = 545,693,736.83 × 121,455,618.15
  4. Step 4: Simplify right side
    363,792,714.15x = 66,277,570,126,663,800
  5. Step 5: Solve for x
    x = 66,277,570,126,663,800/363,792,714.15
  6. Step 6: Final answer
    x = 182,184,984.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.