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Finding the Fourth Proportional to 424,818.80, 637,227.44 and 125,509.64

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Solution

The fourth proportional to 424,818.80, 637,227.44 and 125,509.64 is: 188,264.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,818.80 : 637,227.44 = 125,509.64 : x
  2. Step 2: Convert to fraction form
    424,818.80/637,227.44 = 125,509.64/x
  3. Step 3: Cross multiply
    424,818.80x = 637,227.44 × 125,509.64
  4. Step 4: Simplify right side
    424,818.80x = 79,978,186,592.52
  5. Step 5: Solve for x
    x = 79,978,186,592.52/424,818.80
  6. Step 6: Final answer
    x = 188,264.24

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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.