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Finding the Fourth Proportional to 383,491.36, 575,237.03 and 117,251.87

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Solution

The fourth proportional to 383,491.36, 575,237.03 and 117,251.87 is: 175,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,491.36 : 575,237.03 = 117,251.87 : x
  2. Step 2: Convert to fraction form
    383,491.36/575,237.03 = 117,251.87/x
  3. Step 3: Cross multiply
    383,491.36x = 575,237.03 × 117,251.87
  4. Step 4: Simplify right side
    383,491.36x = 67,447,617,460.75
  5. Step 5: Solve for x
    x = 67,447,617,460.75/383,491.36
  6. Step 6: Final answer
    x = 175,877.80

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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.