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Finding the Fourth Proportional to 279,316.68, 385,389.81 and 164,600.01

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Solution

The fourth proportional to 279,316.68, 385,389.81 and 164,600.01 is: 227,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,316.68 : 385,389.81 = 164,600.01 : x
  2. Step 2: Convert to fraction form
    279,316.68/385,389.81 = 164,600.01/x
  3. Step 3: Cross multiply
    279,316.68x = 385,389.81 × 164,600.01
  4. Step 4: Simplify right side
    279,316.68x = 63,435,166,579.90
  5. Step 5: Solve for x
    x = 63,435,166,579.90/279,316.68
  6. Step 6: Final answer
    x = 227,108.41

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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.