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Finding the Fourth Proportional to 381,745.07, 572,688.00 and 125,592.06

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Solution

The fourth proportional to 381,745.07, 572,688.00 and 125,592.06 is: 188,411.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,745.07 : 572,688.00 = 125,592.06 : x
  2. Step 2: Convert to fraction form
    381,745.07/572,688.00 = 125,592.06/x
  3. Step 3: Cross multiply
    381,745.07x = 572,688.00 × 125,592.06
  4. Step 4: Simplify right side
    381,745.07x = 71,925,067,961.85
  5. Step 5: Solve for x
    x = 71,925,067,961.85/381,745.07
  6. Step 6: Final answer
    x = 188,411.25

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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.