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Finding the Fourth Proportional to 70,590,571.60, 105,885,857.40 and 70,590,571.60

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Solution

The fourth proportional to 70,590,571.60, 105,885,857.40 and 70,590,571.60 is: 105,885,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,590,571.60 : 105,885,857.40 = 70,590,571.60 : x
  2. Step 2: Convert to fraction form
    70,590,571.60/105,885,857.40 = 70,590,571.60/x
  3. Step 3: Cross multiply
    70,590,571.60x = 105,885,857.40 × 70,590,571.60
  4. Step 4: Simplify right side
    70,590,571.60x = 7,474,543,198,222,090
  5. Step 5: Solve for x
    x = 7,474,543,198,222,090/70,590,571.60
  6. Step 6: Final answer
    x = 105,885,857.40

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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.