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Finding the Fourth Proportional to 340,100.42, 469,318.11 and 187,133

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Solution

The fourth proportional to 340,100.42, 469,318.11 and 187,133 is: 258,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,100.42 : 469,318.11 = 187,133 : x
  2. Step 2: Convert to fraction form
    340,100.42/469,318.11 = 187,133/x
  3. Step 3: Cross multiply
    340,100.42x = 469,318.11 × 187,133
  4. Step 4: Simplify right side
    340,100.42x = 87,824,905,878.63
  5. Step 5: Solve for x
    x = 87,824,905,878.63/340,100.42
  6. Step 6: Final answer
    x = 258,232.28

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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.