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Finding the Fourth Proportional to 210,782,512, 290,879,866.56 and 114,313,520

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Solution

The fourth proportional to 210,782,512, 290,879,866.56 and 114,313,520 is: 157,752,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,782,512 : 290,879,866.56 = 114,313,520 : x
  2. Step 2: Convert to fraction form
    210,782,512/290,879,866.56 = 114,313,520/x
  3. Step 3: Cross multiply
    210,782,512x = 290,879,866.56 × 114,313,520
  4. Step 4: Simplify right side
    210,782,512x = 33,251,501,443,603,892
  5. Step 5: Solve for x
    x = 33,251,501,443,603,892/210,782,512
  6. Step 6: Final answer
    x = 157,752,657.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.