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Finding the Fourth Proportional to 314,990.44, 472,576.92 and 101,790.88

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Solution

The fourth proportional to 314,990.44, 472,576.92 and 101,790.88 is: 152,715.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,990.44 : 472,576.92 = 101,790.88 : x
  2. Step 2: Convert to fraction form
    314,990.44/472,576.92 = 101,790.88/x
  3. Step 3: Cross multiply
    314,990.44x = 472,576.92 × 101,790.88
  4. Step 4: Simplify right side
    314,990.44x = 48,104,020,554.49
  5. Step 5: Solve for x
    x = 48,104,020,554.49/314,990.44
  6. Step 6: Final answer
    x = 152,715.81

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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.