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Finding the Fourth Proportional to 341,792,716.40, 512,703,071.40 and 99,455,620.40

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Solution

The fourth proportional to 341,792,716.40, 512,703,071.40 and 99,455,620.40 is: 149,187,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,792,716.40 : 512,703,071.40 = 99,455,620.40 : x
  2. Step 2: Convert to fraction form
    341,792,716.40/512,703,071.40 = 99,455,620.40/x
  3. Step 3: Cross multiply
    341,792,716.40x = 512,703,071.40 × 99,455,620.40
  4. Step 4: Simplify right side
    341,792,716.40x = 50,991,202,047,072,496
  5. Step 5: Solve for x
    x = 50,991,202,047,072,496/341,792,716.40
  6. Step 6: Final answer
    x = 149,187,503.42

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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.