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Finding the Fourth Proportional to 323,044.50, 484,586.20 and 101,428.50

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Solution

The fourth proportional to 323,044.50, 484,586.20 and 101,428.50 is: 152,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,044.50 : 484,586.20 = 101,428.50 : x
  2. Step 2: Convert to fraction form
    323,044.50/484,586.20 = 101,428.50/x
  3. Step 3: Cross multiply
    323,044.50x = 484,586.20 × 101,428.50
  4. Step 4: Simplify right side
    323,044.50x = 49,150,851,386.70
  5. Step 5: Solve for x
    x = 49,150,851,386.70/323,044.50
  6. Step 6: Final answer
    x = 152,148.86

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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.