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Finding the Fourth Proportional to 181,687,647.80, 272,531,471.70 and 167,657,605.40

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Solution

The fourth proportional to 181,687,647.80, 272,531,471.70 and 167,657,605.40 is: 251,486,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,687,647.80 : 272,531,471.70 = 167,657,605.40 : x
  2. Step 2: Convert to fraction form
    181,687,647.80/272,531,471.70 = 167,657,605.40/x
  3. Step 3: Cross multiply
    181,687,647.80x = 272,531,471.70 × 167,657,605.40
  4. Step 4: Simplify right side
    181,687,647.80x = 45,691,973,941,359,864
  5. Step 5: Solve for x
    x = 45,691,973,941,359,864/181,687,647.80
  6. Step 6: Final answer
    x = 251,486,408.10

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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.