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Finding the Fourth Proportional to 194,621, 291,929.76 and 61,501.28

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Solution

The fourth proportional to 194,621, 291,929.76 and 61,501.28 is: 92,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,621 : 291,929.76 = 61,501.28 : x
  2. Step 2: Convert to fraction form
    194,621/291,929.76 = 61,501.28/x
  3. Step 3: Cross multiply
    194,621x = 291,929.76 × 61,501.28
  4. Step 4: Simplify right side
    194,621x = 17,954,053,910.09
  5. Step 5: Solve for x
    x = 17,954,053,910.09/194,621
  6. Step 6: Final answer
    x = 92,251.37

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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.