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Finding the Fourth Proportional to 268,078,862.52, 369,978,786.33 and 162,290,565.62

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Solution

The fourth proportional to 268,078,862.52, 369,978,786.33 and 162,290,565.62 is: 223,979,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,078,862.52 : 369,978,786.33 = 162,290,565.62 : x
  2. Step 2: Convert to fraction form
    268,078,862.52/369,978,786.33 = 162,290,565.62/x
  3. Step 3: Cross multiply
    268,078,862.52x = 369,978,786.33 × 162,290,565.62
  4. Step 4: Simplify right side
    268,078,862.52x = 60,044,066,500,896,824
  5. Step 5: Solve for x
    x = 60,044,066,500,896,824/268,078,862.52
  6. Step 6: Final answer
    x = 223,979,115.46

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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.