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Finding the Fourth Proportional to 424,946.96, 637,271.91 and 125,348.01

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Solution

The fourth proportional to 424,946.96, 637,271.91 and 125,348.01 is: 187,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,946.96 : 637,271.91 = 125,348.01 : x
  2. Step 2: Convert to fraction form
    424,946.96/637,271.91 = 125,348.01/x
  3. Step 3: Cross multiply
    424,946.96x = 637,271.91 × 125,348.01
  4. Step 4: Simplify right side
    424,946.96x = 79,880,765,747.40
  5. Step 5: Solve for x
    x = 79,880,765,747.40/424,946.96
  6. Step 6: Final answer
    x = 187,978.20

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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.