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Finding the Fourth Proportional to 346,343.72, 519,568.43 and 146,665.15

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Solution

The fourth proportional to 346,343.72, 519,568.43 and 146,665.15 is: 220,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,343.72 : 519,568.43 = 146,665.15 : x
  2. Step 2: Convert to fraction form
    346,343.72/519,568.43 = 146,665.15/x
  3. Step 3: Cross multiply
    346,343.72x = 519,568.43 × 146,665.15
  4. Step 4: Simplify right side
    346,343.72x = 76,202,579,688.97
  5. Step 5: Solve for x
    x = 76,202,579,688.97/346,343.72
  6. Step 6: Final answer
    x = 220,020.10

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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.