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Finding the Fourth Proportional to 75,124.61, 103,676.95 and 43,295.55

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Solution

The fourth proportional to 75,124.61, 103,676.95 and 43,295.55 is: 59,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,124.61 : 103,676.95 = 43,295.55 : x
  2. Step 2: Convert to fraction form
    75,124.61/103,676.95 = 43,295.55/x
  3. Step 3: Cross multiply
    75,124.61x = 103,676.95 × 43,295.55
  4. Step 4: Simplify right side
    75,124.61x = 4,488,751,015.48
  5. Step 5: Solve for x
    x = 4,488,751,015.48/75,124.61
  6. Step 6: Final answer
    x = 59,750.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.