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Finding the Fourth Proportional to 318,041.11, 438,899.48 and 174,804.49

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Solution

The fourth proportional to 318,041.11, 438,899.48 and 174,804.49 is: 241,231.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,041.11 : 438,899.48 = 174,804.49 : x
  2. Step 2: Convert to fraction form
    318,041.11/438,899.48 = 174,804.49/x
  3. Step 3: Cross multiply
    318,041.11x = 438,899.48 × 174,804.49
  4. Step 4: Simplify right side
    318,041.11x = 76,721,599,762.67
  5. Step 5: Solve for x
    x = 76,721,599,762.67/318,041.11
  6. Step 6: Final answer
    x = 241,231.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.