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Finding the Fourth Proportional to 172,924.40, 259,364.72 and 54,607.70

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Solution

The fourth proportional to 172,924.40, 259,364.72 and 54,607.70 is: 81,904.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,924.40 : 259,364.72 = 54,607.70 : x
  2. Step 2: Convert to fraction form
    172,924.40/259,364.72 = 54,607.70/x
  3. Step 3: Cross multiply
    172,924.40x = 259,364.72 × 54,607.70
  4. Step 4: Simplify right side
    172,924.40x = 14,163,310,820.34
  5. Step 5: Solve for x
    x = 14,163,310,820.34/172,924.40
  6. Step 6: Final answer
    x = 81,904.64

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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.