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Finding the Fourth Proportional to 254,605.68, 351,368.28 and 141,426

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Solution

The fourth proportional to 254,605.68, 351,368.28 and 141,426 is: 195,174.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,605.68 : 351,368.28 = 141,426 : x
  2. Step 2: Convert to fraction form
    254,605.68/351,368.28 = 141,426/x
  3. Step 3: Cross multiply
    254,605.68x = 351,368.28 × 141,426
  4. Step 4: Simplify right side
    254,605.68x = 49,692,610,367.28
  5. Step 5: Solve for x
    x = 49,692,610,367.28/254,605.68
  6. Step 6: Final answer
    x = 195,174.79

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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.