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Finding the Fourth Proportional to 131,654.64, 196,469.58 and 117,657.84

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Solution

The fourth proportional to 131,654.64, 196,469.58 and 117,657.84 is: 175,582.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,654.64 : 196,469.58 = 117,657.84 : x
  2. Step 2: Convert to fraction form
    131,654.64/196,469.58 = 117,657.84/x
  3. Step 3: Cross multiply
    131,654.64x = 196,469.58 × 117,657.84
  4. Step 4: Simplify right side
    131,654.64x = 23,116,186,408.51
  5. Step 5: Solve for x
    x = 23,116,186,408.51/131,654.64
  6. Step 6: Final answer
    x = 175,582.01

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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.