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Finding the Fourth Proportional to 351,875.77, 485,589.60 and 190,731.46

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Solution

The fourth proportional to 351,875.77, 485,589.60 and 190,731.46 is: 263,209.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,875.77 : 485,589.60 = 190,731.46 : x
  2. Step 2: Convert to fraction form
    351,875.77/485,589.60 = 190,731.46/x
  3. Step 3: Cross multiply
    351,875.77x = 485,589.60 × 190,731.46
  4. Step 4: Simplify right side
    351,875.77x = 92,617,213,368.82
  5. Step 5: Solve for x
    x = 92,617,213,368.82/351,875.77
  6. Step 6: Final answer
    x = 263,209.98

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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.