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Finding the Fourth Proportional to 79,167.76, 118,756.52 and 34,815.40

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Solution

The fourth proportional to 79,167.76, 118,756.52 and 34,815.40 is: 52,225.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,167.76 : 118,756.52 = 34,815.40 : x
  2. Step 2: Convert to fraction form
    79,167.76/118,756.52 = 34,815.40/x
  3. Step 3: Cross multiply
    79,167.76x = 118,756.52 × 34,815.40
  4. Step 4: Simplify right side
    79,167.76x = 4,134,555,746.41
  5. Step 5: Solve for x
    x = 4,134,555,746.41/79,167.76
  6. Step 6: Final answer
    x = 52,225.25

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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.