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Finding the Fourth Proportional to 383,389.24, 575,339.82 and 134,071.24

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Solution

The fourth proportional to 383,389.24, 575,339.82 and 134,071.24 is: 201,196.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,389.24 : 575,339.82 = 134,071.24 : x
  2. Step 2: Convert to fraction form
    383,389.24/575,339.82 = 134,071.24/x
  3. Step 3: Cross multiply
    383,389.24x = 575,339.82 × 134,071.24
  4. Step 4: Simplify right side
    383,389.24x = 77,136,523,088.78
  5. Step 5: Solve for x
    x = 77,136,523,088.78/383,389.24
  6. Step 6: Final answer
    x = 201,196.37

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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.