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Finding the Fourth Proportional to 346,389.84, 519,639.12 and 146,711.34

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Solution

The fourth proportional to 346,389.84, 519,639.12 and 146,711.34 is: 220,090.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,389.84 : 519,639.12 = 146,711.34 : x
  2. Step 2: Convert to fraction form
    346,389.84/519,639.12 = 146,711.34/x
  3. Step 3: Cross multiply
    346,389.84x = 519,639.12 × 146,711.34
  4. Step 4: Simplify right side
    346,389.84x = 76,236,951,611.62
  5. Step 5: Solve for x
    x = 76,236,951,611.62/346,389.84
  6. Step 6: Final answer
    x = 220,090.03

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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.