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Finding the Fourth Proportional to 188,402.52, 281,464.89 and 121,295.64

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Solution

The fourth proportional to 188,402.52, 281,464.89 and 121,295.64 is: 181,210.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,402.52 : 281,464.89 = 121,295.64 : x
  2. Step 2: Convert to fraction form
    188,402.52/281,464.89 = 121,295.64/x
  3. Step 3: Cross multiply
    188,402.52x = 281,464.89 × 121,295.64
  4. Step 4: Simplify right side
    188,402.52x = 34,140,463,970.08
  5. Step 5: Solve for x
    x = 34,140,463,970.08/188,402.52
  6. Step 6: Final answer
    x = 181,210.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.