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Finding the Fourth Proportional to 140,704.11, 210,844.35 and 84,482.82

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Solution

The fourth proportional to 140,704.11, 210,844.35 and 84,482.82 is: 126,597.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,704.11 : 210,844.35 = 84,482.82 : x
  2. Step 2: Convert to fraction form
    140,704.11/210,844.35 = 84,482.82/x
  3. Step 3: Cross multiply
    140,704.11x = 210,844.35 × 84,482.82
  4. Step 4: Simplify right side
    140,704.11x = 17,812,725,269.07
  5. Step 5: Solve for x
    x = 17,812,725,269.07/140,704.11
  6. Step 6: Final answer
    x = 126,597.05

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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.