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Finding the Fourth Proportional to 79,106.90, 118,657.24 and 29,165.40

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Solution

The fourth proportional to 79,106.90, 118,657.24 and 29,165.40 is: 43,746.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,106.90 : 118,657.24 = 29,165.40 : x
  2. Step 2: Convert to fraction form
    79,106.90/118,657.24 = 29,165.40/x
  3. Step 3: Cross multiply
    79,106.90x = 118,657.24 × 29,165.40
  4. Step 4: Simplify right side
    79,106.90x = 3,460,685,794.58
  5. Step 5: Solve for x
    x = 3,460,685,794.58/79,106.90
  6. Step 6: Final answer
    x = 43,746.96

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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.