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Finding the Fourth Proportional to 181,978,448.90, 272,967,673.35 and 113,103,695.30

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Solution

The fourth proportional to 181,978,448.90, 272,967,673.35 and 113,103,695.30 is: 169,655,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,978,448.90 : 272,967,673.35 = 113,103,695.30 : x
  2. Step 2: Convert to fraction form
    181,978,448.90/272,967,673.35 = 113,103,695.30/x
  3. Step 3: Cross multiply
    181,978,448.90x = 272,967,673.35 × 113,103,695.30
  4. Step 4: Simplify right side
    181,978,448.90x = 30,873,652,553,328,332
  5. Step 5: Solve for x
    x = 30,873,652,553,328,332/181,978,448.90
  6. Step 6: Final answer
    x = 169,655,542.95

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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.