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Finding the Fourth Proportional to 181,978,445.90, 272,967,668.85 and 113,103,692.30

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Solution

The fourth proportional to 181,978,445.90, 272,967,668.85 and 113,103,692.30 is: 169,655,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,978,445.90 : 272,967,668.85 = 113,103,692.30 : x
  2. Step 2: Convert to fraction form
    181,978,445.90/272,967,668.85 = 113,103,692.30/x
  3. Step 3: Cross multiply
    181,978,445.90x = 272,967,668.85 × 113,103,692.30
  4. Step 4: Simplify right side
    181,978,445.90x = 30,873,651,225,458,696
  5. Step 5: Solve for x
    x = 30,873,651,225,458,696/181,978,445.90
  6. Step 6: Final answer
    x = 169,655,538.45

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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.