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Finding the Fourth Proportional to 171,397.64, 236,980.28 and 150,115.98

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Solution

The fourth proportional to 171,397.64, 236,980.28 and 150,115.98 is: 207,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,397.64 : 236,980.28 = 150,115.98 : x
  2. Step 2: Convert to fraction form
    171,397.64/236,980.28 = 150,115.98/x
  3. Step 3: Cross multiply
    171,397.64x = 236,980.28 × 150,115.98
  4. Step 4: Simplify right side
    171,397.64x = 35,574,526,972.87
  5. Step 5: Solve for x
    x = 35,574,526,972.87/171,397.64
  6. Step 6: Final answer
    x = 207,555.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.