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Finding the Fourth Proportional to 117,157.51, 175,736.21 and 28,411.00

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Solution

The fourth proportional to 117,157.51, 175,736.21 and 28,411.00 is: 42,616.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,157.51 : 175,736.21 = 28,411.00 : x
  2. Step 2: Convert to fraction form
    117,157.51/175,736.21 = 28,411.00/x
  3. Step 3: Cross multiply
    117,157.51x = 175,736.21 × 28,411.00
  4. Step 4: Simplify right side
    117,157.51x = 4,992,840,880.91
  5. Step 5: Solve for x
    x = 4,992,840,880.91/117,157.51
  6. Step 6: Final answer
    x = 42,616.48

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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.