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Finding the Fourth Proportional to 117,099.72, 175,649.85 and 28,352.88

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Solution

The fourth proportional to 117,099.72, 175,649.85 and 28,352.88 is: 42,529.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,099.72 : 175,649.85 = 28,352.88 : x
  2. Step 2: Convert to fraction form
    117,099.72/175,649.85 = 28,352.88/x
  3. Step 3: Cross multiply
    117,099.72x = 175,649.85 × 28,352.88
  4. Step 4: Simplify right side
    117,099.72x = 4,980,179,119.07
  5. Step 5: Solve for x
    x = 4,980,179,119.07/117,099.72
  6. Step 6: Final answer
    x = 42,529.39

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1.5x scale

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.