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Finding the Fourth Proportional to 181,668.88, 272,558.80 and 92,985.22

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Solution

The fourth proportional to 181,668.88, 272,558.80 and 92,985.22 is: 139,506.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,668.88 : 272,558.80 = 92,985.22 : x
  2. Step 2: Convert to fraction form
    181,668.88/272,558.80 = 92,985.22/x
  3. Step 3: Cross multiply
    181,668.88x = 272,558.80 × 92,985.22
  4. Step 4: Simplify right side
    181,668.88x = 25,343,938,618.14
  5. Step 5: Solve for x
    x = 25,343,938,618.14/181,668.88
  6. Step 6: Final answer
    x = 139,506.22

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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.