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Finding the Fourth Proportional to 177,644,067.90, 266,913,999.45 and 112,978,851.90

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Solution

The fourth proportional to 177,644,067.90, 266,913,999.45 and 112,978,851.90 is: 169,753,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,644,067.90 : 266,913,999.45 = 112,978,851.90 : x
  2. Step 2: Convert to fraction form
    177,644,067.90/266,913,999.45 = 112,978,851.90/x
  3. Step 3: Cross multiply
    177,644,067.90x = 266,913,999.45 × 112,978,851.90
  4. Step 4: Simplify right side
    177,644,067.90x = 30,155,637,213,898,232
  5. Step 5: Solve for x
    x = 30,155,637,213,898,232/177,644,067.90
  6. Step 6: Final answer
    x = 169,753,133.73

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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.