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Finding the Fourth Proportional to 424,951.72, 637,421.82 and 144,664.36

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Solution

The fourth proportional to 424,951.72, 637,421.82 and 144,664.36 is: 216,994.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,951.72 : 637,421.82 = 144,664.36 : x
  2. Step 2: Convert to fraction form
    424,951.72/637,421.82 = 144,664.36/x
  3. Step 3: Cross multiply
    424,951.72x = 637,421.82 × 144,664.36
  4. Step 4: Simplify right side
    424,951.72x = 92,212,219,640.34
  5. Step 5: Solve for x
    x = 92,212,219,640.34/424,951.72
  6. Step 6: Final answer
    x = 216,994.58

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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.