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Finding the Fourth Proportional to 45,698.60, 68,531.70 and 16,117.40

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Solution

The fourth proportional to 45,698.60, 68,531.70 and 16,117.40 is: 24,170.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,698.60 : 68,531.70 = 16,117.40 : x
  2. Step 2: Convert to fraction form
    45,698.60/68,531.70 = 16,117.40/x
  3. Step 3: Cross multiply
    45,698.60x = 68,531.70 × 16,117.40
  4. Step 4: Simplify right side
    45,698.60x = 1,104,552,821.58
  5. Step 5: Solve for x
    x = 1,104,552,821.58/45,698.60
  6. Step 6: Final answer
    x = 24,170.39

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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.