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Finding the Fourth Proportional to 293,102.80, 439,913.40 and 251,112.40

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Solution

The fourth proportional to 293,102.80, 439,913.40 and 251,112.40 is: 376,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,102.80 : 439,913.40 = 251,112.40 : x
  2. Step 2: Convert to fraction form
    293,102.80/439,913.40 = 251,112.40/x
  3. Step 3: Cross multiply
    293,102.80x = 439,913.40 × 251,112.40
  4. Step 4: Simplify right side
    293,102.80x = 110,467,709,666.16
  5. Step 5: Solve for x
    x = 110,467,709,666.16/293,102.80
  6. Step 6: Final answer
    x = 376,890.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.