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Finding the Fourth Proportional to 52,663,260.60, 78,994,890.90 and 51,907,433.40

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Solution

The fourth proportional to 52,663,260.60, 78,994,890.90 and 51,907,433.40 is: 77,861,150.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,663,260.60 : 78,994,890.90 = 51,907,433.40 : x
  2. Step 2: Convert to fraction form
    52,663,260.60/78,994,890.90 = 51,907,433.40/x
  3. Step 3: Cross multiply
    52,663,260.60x = 78,994,890.90 × 51,907,433.40
  4. Step 4: Simplify right side
    52,663,260.60x = 4,100,422,038,332,016.50
  5. Step 5: Solve for x
    x = 4,100,422,038,332,016.50/52,663,260.60
  6. Step 6: Final answer
    x = 77,861,150.10

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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.