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Finding the Fourth Proportional to 383,759.61, 575,667.07 and 117,485.51

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Solution

The fourth proportional to 383,759.61, 575,667.07 and 117,485.51 is: 176,236.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,759.61 : 575,667.07 = 117,485.51 : x
  2. Step 2: Convert to fraction form
    383,759.61/575,667.07 = 117,485.51/x
  3. Step 3: Cross multiply
    383,759.61x = 575,667.07 × 117,485.51
  4. Step 4: Simplify right side
    383,759.61x = 67,632,536,137.11
  5. Step 5: Solve for x
    x = 67,632,536,137.11/383,759.61
  6. Step 6: Final answer
    x = 176,236.72

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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.