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Finding the Fourth Proportional to 219,597,714.71, 329,398,934.38 and 66,245,100.47

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Solution

The fourth proportional to 219,597,714.71, 329,398,934.38 and 66,245,100.47 is: 99,368,363.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,597,714.71 : 329,398,934.38 = 66,245,100.47 : x
  2. Step 2: Convert to fraction form
    219,597,714.71/329,398,934.38 = 66,245,100.47/x
  3. Step 3: Cross multiply
    219,597,714.71x = 329,398,934.38 × 66,245,100.47
  4. Step 4: Simplify right side
    219,597,714.71x = 21,821,065,502,714,036
  5. Step 5: Solve for x
    x = 21,821,065,502,714,036/219,597,714.71
  6. Step 6: Final answer
    x = 99,368,363.33

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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.