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Finding the Fourth Proportional to 245,057,416.70, 343,941,317.80 and 245,057,416.70

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Solution

The fourth proportional to 245,057,416.70, 343,941,317.80 and 245,057,416.70 is: 343,941,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,057,416.70 : 343,941,317.80 = 245,057,416.70 : x
  2. Step 2: Convert to fraction form
    245,057,416.70/343,941,317.80 = 245,057,416.70/x
  3. Step 3: Cross multiply
    245,057,416.70x = 343,941,317.80 × 245,057,416.70
  4. Step 4: Simplify right side
    245,057,416.70x = 84,285,370,836,461,728
  5. Step 5: Solve for x
    x = 84,285,370,836,461,728/245,057,416.70
  6. Step 6: Final answer
    x = 343,941,317.80

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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.