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Finding the Fourth Proportional to 424,946.78, 637,271.63 and 125,347.82

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Solution

The fourth proportional to 424,946.78, 637,271.63 and 125,347.82 is: 187,977.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,946.78 : 637,271.63 = 125,347.82 : x
  2. Step 2: Convert to fraction form
    424,946.78/637,271.63 = 125,347.82/x
  3. Step 3: Cross multiply
    424,946.78x = 637,271.63 × 125,347.82
  4. Step 4: Simplify right side
    424,946.78x = 79,880,611,004.84
  5. Step 5: Solve for x
    x = 79,880,611,004.84/424,946.78
  6. Step 6: Final answer
    x = 187,977.92

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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.