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Finding the Fourth Proportional to 625,381.88, 938,059.86 and 152,069.72

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Solution

The fourth proportional to 625,381.88, 938,059.86 and 152,069.72 is: 228,101.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,381.88 : 938,059.86 = 152,069.72 : x
  2. Step 2: Convert to fraction form
    625,381.88/938,059.86 = 152,069.72/x
  3. Step 3: Cross multiply
    625,381.88x = 938,059.86 × 152,069.72
  4. Step 4: Simplify right side
    625,381.88x = 142,650,503,168.85
  5. Step 5: Solve for x
    x = 142,650,503,168.85/625,381.88
  6. Step 6: Final answer
    x = 228,101.43

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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.