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Finding the Fourth Proportional to 318,041.86, 438,900.51 and 174,805.24

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Solution

The fourth proportional to 318,041.86, 438,900.51 and 174,805.24 is: 241,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,041.86 : 438,900.51 = 174,805.24 : x
  2. Step 2: Convert to fraction form
    318,041.86/438,900.51 = 174,805.24/x
  3. Step 3: Cross multiply
    318,041.86x = 438,900.51 × 174,805.24
  4. Step 4: Simplify right side
    318,041.86x = 76,722,108,986.67
  5. Step 5: Solve for x
    x = 76,722,108,986.67/318,041.86
  6. Step 6: Final answer
    x = 241,232.74

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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.