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Finding the Fourth Proportional to 258,833,451.77, 357,198,978.20 and 153,077,523.15

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Solution

The fourth proportional to 258,833,451.77, 357,198,978.20 and 153,077,523.15 is: 211,252,195.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,833,451.77 : 357,198,978.20 = 153,077,523.15 : x
  2. Step 2: Convert to fraction form
    258,833,451.77/357,198,978.20 = 153,077,523.15/x
  3. Step 3: Cross multiply
    258,833,451.77x = 357,198,978.20 × 153,077,523.15
  4. Step 4: Simplify right side
    258,833,451.77x = 54,679,134,853,801,456
  5. Step 5: Solve for x
    x = 54,679,134,853,801,456/258,833,451.77
  6. Step 6: Final answer
    x = 211,252,195.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.