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Finding the Fourth Proportional to 46,693,668.80, 70,040,503.20 and 19,819,812.80

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Solution

The fourth proportional to 46,693,668.80, 70,040,503.20 and 19,819,812.80 is: 29,729,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,693,668.80 : 70,040,503.20 = 19,819,812.80 : x
  2. Step 2: Convert to fraction form
    46,693,668.80/70,040,503.20 = 19,819,812.80/x
  3. Step 3: Cross multiply
    46,693,668.80x = 70,040,503.20 × 19,819,812.80
  4. Step 4: Simplify right side
    46,693,668.80x = 1,388,189,661,841,801
  5. Step 5: Solve for x
    x = 1,388,189,661,841,801/46,693,668.80
  6. Step 6: Final answer
    x = 29,729,719.20

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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.