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Finding the Fourth Proportional to 251,628, 347,266.62 and 144,208.01

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Solution

The fourth proportional to 251,628, 347,266.62 and 144,208.01 is: 199,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,628 : 347,266.62 = 144,208.01 : x
  2. Step 2: Convert to fraction form
    251,628/347,266.62 = 144,208.01/x
  3. Step 3: Cross multiply
    251,628x = 347,266.62 × 144,208.01
  4. Step 4: Simplify right side
    251,628x = 50,078,626,473.29
  5. Step 5: Solve for x
    x = 50,078,626,473.29/251,628
  6. Step 6: Final answer
    x = 199,018.50

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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.