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Finding the Fourth Proportional to 253,394.53, 349,669.96 and 140,210.53

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Solution

The fourth proportional to 253,394.53, 349,669.96 and 140,210.53 is: 193,482.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,394.53 : 349,669.96 = 140,210.53 : x
  2. Step 2: Convert to fraction form
    253,394.53/349,669.96 = 140,210.53/x
  3. Step 3: Cross multiply
    253,394.53x = 349,669.96 × 140,210.53
  4. Step 4: Simplify right side
    253,394.53x = 49,027,410,416.68
  5. Step 5: Solve for x
    x = 49,027,410,416.68/253,394.53
  6. Step 6: Final answer
    x = 193,482.51

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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.