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Finding the Fourth Proportional to 281,482.68, 421,226.64 and 248,267.64

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Solution

The fourth proportional to 281,482.68, 421,226.64 and 248,267.64 is: 371,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,482.68 : 421,226.64 = 248,267.64 : x
  2. Step 2: Convert to fraction form
    281,482.68/421,226.64 = 248,267.64/x
  3. Step 3: Cross multiply
    281,482.68x = 421,226.64 × 248,267.64
  4. Step 4: Simplify right side
    281,482.68x = 104,576,943,817.93
  5. Step 5: Solve for x
    x = 104,576,943,817.93/281,482.68
  6. Step 6: Final answer
    x = 371,521.77

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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.