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Finding the Fourth Proportional to 348,656.43, 522,490.23 and 146,034.30

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Solution

The fourth proportional to 348,656.43, 522,490.23 and 146,034.30 is: 218,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,656.43 : 522,490.23 = 146,034.30 : x
  2. Step 2: Convert to fraction form
    348,656.43/522,490.23 = 146,034.30/x
  3. Step 3: Cross multiply
    348,656.43x = 522,490.23 × 146,034.30
  4. Step 4: Simplify right side
    348,656.43x = 76,301,494,994.89
  5. Step 5: Solve for x
    x = 76,301,494,994.89/348,656.43
  6. Step 6: Final answer
    x = 218,844.36

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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.