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Finding the Fourth Proportional to 370,734.88, 555,717.12 and 157,639.60

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Solution

The fourth proportional to 370,734.88, 555,717.12 and 157,639.60 is: 236,295.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,734.88 : 555,717.12 = 157,639.60 : x
  2. Step 2: Convert to fraction form
    370,734.88/555,717.12 = 157,639.60/x
  3. Step 3: Cross multiply
    370,734.88x = 555,717.12 × 157,639.60
  4. Step 4: Simplify right side
    370,734.88x = 87,603,024,509.95
  5. Step 5: Solve for x
    x = 87,603,024,509.95/370,734.88
  6. Step 6: Final answer
    x = 236,295.61

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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.