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Finding the Fourth Proportional to 49,178,077.60, 68,950,085.60 and 49,178,077.60

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Solution

The fourth proportional to 49,178,077.60, 68,950,085.60 and 49,178,077.60 is: 68,950,085.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,178,077.60 : 68,950,085.60 = 49,178,077.60 : x
  2. Step 2: Convert to fraction form
    49,178,077.60/68,950,085.60 = 49,178,077.60/x
  3. Step 3: Cross multiply
    49,178,077.60x = 68,950,085.60 × 49,178,077.60
  4. Step 4: Simplify right side
    49,178,077.60x = 3,390,832,660,163,442.50
  5. Step 5: Solve for x
    x = 3,390,832,660,163,442.50/49,178,077.60
  6. Step 6: Final answer
    x = 68,950,085.60

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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.