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Finding the Fourth Proportional to 251,912, 347,636.64 and 150,007.36

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Solution

The fourth proportional to 251,912, 347,636.64 and 150,007.36 is: 207,009.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,912 : 347,636.64 = 150,007.36 : x
  2. Step 2: Convert to fraction form
    251,912/347,636.64 = 150,007.36/x
  3. Step 3: Cross multiply
    251,912x = 347,636.64 × 150,007.36
  4. Step 4: Simplify right side
    251,912x = 52,148,054,605.67
  5. Step 5: Solve for x
    x = 52,148,054,605.67/251,912
  6. Step 6: Final answer
    x = 207,009.01

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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.