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Finding the Fourth Proportional to 254,339.88, 351,005.43 and 141,162.63

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Solution

The fourth proportional to 254,339.88, 351,005.43 and 141,162.63 is: 194,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,339.88 : 351,005.43 = 141,162.63 : x
  2. Step 2: Convert to fraction form
    254,339.88/351,005.43 = 141,162.63/x
  3. Step 3: Cross multiply
    254,339.88x = 351,005.43 × 141,162.63
  4. Step 4: Simplify right side
    254,339.88x = 49,548,849,643.08
  5. Step 5: Solve for x
    x = 49,548,849,643.08/254,339.88
  6. Step 6: Final answer
    x = 194,813.53

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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.