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Finding the Fourth Proportional to 341,863.56, 512,795.70 and 89,143.83

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Solution

The fourth proportional to 341,863.56, 512,795.70 and 89,143.83 is: 133,715.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,863.56 : 512,795.70 = 89,143.83 : x
  2. Step 2: Convert to fraction form
    341,863.56/512,795.70 = 89,143.83/x
  3. Step 3: Cross multiply
    341,863.56x = 512,795.70 × 89,143.83
  4. Step 4: Simplify right side
    341,863.56x = 45,712,572,705.53
  5. Step 5: Solve for x
    x = 45,712,572,705.53/341,863.56
  6. Step 6: Final answer
    x = 133,715.84

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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.