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Finding the Fourth Proportional to 114,357, 171,346.02 and 80,911.32

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Solution

The fourth proportional to 114,357, 171,346.02 and 80,911.32 is: 121,232.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,357 : 171,346.02 = 80,911.32 : x
  2. Step 2: Convert to fraction form
    114,357/171,346.02 = 80,911.32/x
  3. Step 3: Cross multiply
    114,357x = 171,346.02 × 80,911.32
  4. Step 4: Simplify right side
    114,357x = 13,863,832,654.95
  5. Step 5: Solve for x
    x = 13,863,832,654.95/114,357
  6. Step 6: Final answer
    x = 121,232.92

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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.