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Finding the Fourth Proportional to 207,774, 311,712.84 and 60,030

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Solution

The fourth proportional to 207,774, 311,712.84 and 60,030 is: 90,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,774 : 311,712.84 = 60,030 : x
  2. Step 2: Convert to fraction form
    207,774/311,712.84 = 60,030/x
  3. Step 3: Cross multiply
    207,774x = 311,712.84 × 60,030
  4. Step 4: Simplify right side
    207,774x = 18,712,121,785.20
  5. Step 5: Solve for x
    x = 18,712,121,785.20/207,774
  6. Step 6: Final answer
    x = 90,059.98

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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.