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Finding the Fourth Proportional to 348,959.74, 523,439.79 and 112,302.40

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Solution

The fourth proportional to 348,959.74, 523,439.79 and 112,302.40 is: 168,453.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,959.74 : 523,439.79 = 112,302.40 : x
  2. Step 2: Convert to fraction form
    348,959.74/523,439.79 = 112,302.40/x
  3. Step 3: Cross multiply
    348,959.74x = 523,439.79 × 112,302.40
  4. Step 4: Simplify right side
    348,959.74x = 58,783,544,672.50
  5. Step 5: Solve for x
    x = 58,783,544,672.50/348,959.74
  6. Step 6: Final answer
    x = 168,453.66

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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.