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Finding the Fourth Proportional to 109,387,411.90, 163,978,474.65 and 41,275,872.70

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Solution

The fourth proportional to 109,387,411.90, 163,978,474.65 and 41,275,872.70 is: 61,875,078.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,387,411.90 : 163,978,474.65 = 41,275,872.70 : x
  2. Step 2: Convert to fraction form
    109,387,411.90/163,978,474.65 = 41,275,872.70/x
  3. Step 3: Cross multiply
    109,387,411.90x = 163,978,474.65 × 41,275,872.70
  4. Step 4: Simplify right side
    109,387,411.90x = 6,768,354,645,193,578
  5. Step 5: Solve for x
    x = 6,768,354,645,193,578/109,387,411.90
  6. Step 6: Final answer
    x = 61,875,078.02

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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.