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Finding the Fourth Proportional to 47,668,571.80, 71,502,857.70 and 13,124,906.80

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Solution

The fourth proportional to 47,668,571.80, 71,502,857.70 and 13,124,906.80 is: 19,687,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,668,571.80 : 71,502,857.70 = 13,124,906.80 : x
  2. Step 2: Convert to fraction form
    47,668,571.80/71,502,857.70 = 13,124,906.80/x
  3. Step 3: Cross multiply
    47,668,571.80x = 71,502,857.70 × 13,124,906.80
  4. Step 4: Simplify right side
    47,668,571.80x = 938,468,343,246,162.50
  5. Step 5: Solve for x
    x = 938,468,343,246,162.50/47,668,571.80
  6. Step 6: Final answer
    x = 19,687,360.20

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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.