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Finding the Fourth Proportional to 348,516.10, 522,082.95 and 207,856.90

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Solution

The fourth proportional to 348,516.10, 522,082.95 and 207,856.90 is: 311,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,516.10 : 522,082.95 = 207,856.90 : x
  2. Step 2: Convert to fraction form
    348,516.10/522,082.95 = 207,856.90/x
  3. Step 3: Cross multiply
    348,516.10x = 522,082.95 × 207,856.90
  4. Step 4: Simplify right side
    348,516.10x = 108,518,543,529.86
  5. Step 5: Solve for x
    x = 108,518,543,529.86/348,516.10
  6. Step 6: Final answer
    x = 311,373.11

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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.