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Finding the Fourth Proportional to 340,883.88, 470,423.08 and 187,928.06

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Solution

The fourth proportional to 340,883.88, 470,423.08 and 187,928.06 is: 259,342.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,883.88 : 470,423.08 = 187,928.06 : x
  2. Step 2: Convert to fraction form
    340,883.88/470,423.08 = 187,928.06/x
  3. Step 3: Cross multiply
    340,883.88x = 470,423.08 × 187,928.06
  4. Step 4: Simplify right side
    340,883.88x = 88,405,696,803.62
  5. Step 5: Solve for x
    x = 88,405,696,803.62/340,883.88
  6. Step 6: Final answer
    x = 259,342.56

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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.