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Finding the Fourth Proportional to 371,700.76, 557,572.32 and 105,440.44

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Solution

The fourth proportional to 371,700.76, 557,572.32 and 105,440.44 is: 158,166.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,700.76 : 557,572.32 = 105,440.44 : x
  2. Step 2: Convert to fraction form
    371,700.76/557,572.32 = 105,440.44/x
  3. Step 3: Cross multiply
    371,700.76x = 557,572.32 × 105,440.44
  4. Step 4: Simplify right side
    371,700.76x = 58,790,670,752.62
  5. Step 5: Solve for x
    x = 58,790,670,752.62/371,700.76
  6. Step 6: Final answer
    x = 158,166.67

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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.