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Finding the Fourth Proportional to 134,967, 202,573.28 and 71,840.19

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Solution

The fourth proportional to 134,967, 202,573.28 and 71,840.19 is: 107,825.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,967 : 202,573.28 = 71,840.19 : x
  2. Step 2: Convert to fraction form
    134,967/202,573.28 = 71,840.19/x
  3. Step 3: Cross multiply
    134,967x = 202,573.28 × 71,840.19
  4. Step 4: Simplify right side
    134,967x = 14,552,902,924.12
  5. Step 5: Solve for x
    x = 14,552,902,924.12/134,967
  6. Step 6: Final answer
    x = 107,825.64

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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.