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Finding the Fourth Proportional to 424,782.68, 637,173.22 and 125,473.42

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Solution

The fourth proportional to 424,782.68, 637,173.22 and 125,473.42 is: 188,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,782.68 : 637,173.22 = 125,473.42 : x
  2. Step 2: Convert to fraction form
    424,782.68/637,173.22 = 125,473.42/x
  3. Step 3: Cross multiply
    424,782.68x = 637,173.22 × 125,473.42
  4. Step 4: Simplify right side
    424,782.68x = 79,948,303,045.81
  5. Step 5: Solve for x
    x = 79,948,303,045.81/424,782.68
  6. Step 6: Final answer
    x = 188,209.89

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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.