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Finding the Fourth Proportional to 185,664,485.70, 278,496,728.55 and 49,363,647.30

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Solution

The fourth proportional to 185,664,485.70, 278,496,728.55 and 49,363,647.30 is: 74,045,470.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,664,485.70 : 278,496,728.55 = 49,363,647.30 : x
  2. Step 2: Convert to fraction form
    185,664,485.70/278,496,728.55 = 49,363,647.30/x
  3. Step 3: Cross multiply
    185,664,485.70x = 278,496,728.55 × 49,363,647.30
  4. Step 4: Simplify right side
    185,664,485.70x = 13,747,614,282,346,040
  5. Step 5: Solve for x
    x = 13,747,614,282,346,040/185,664,485.70
  6. Step 6: Final answer
    x = 74,045,470.95

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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.