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Finding the Fourth Proportional to 341,981.44, 512,947.86 and 105,299.44

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Solution

The fourth proportional to 341,981.44, 512,947.86 and 105,299.44 is: 157,941.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,981.44 : 512,947.86 = 105,299.44 : x
  2. Step 2: Convert to fraction form
    341,981.44/512,947.86 = 105,299.44/x
  3. Step 3: Cross multiply
    341,981.44x = 512,947.86 × 105,299.44
  4. Step 4: Simplify right side
    341,981.44x = 54,013,122,407.20
  5. Step 5: Solve for x
    x = 54,013,122,407.20/341,981.44
  6. Step 6: Final answer
    x = 157,941.68

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1.5x scale

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.