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Finding the Fourth Proportional to 281,785.79, 421,680.93 and 175,219.94

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Solution

The fourth proportional to 281,785.79, 421,680.93 and 175,219.94 is: 262,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,785.79 : 421,680.93 = 175,219.94 : x
  2. Step 2: Convert to fraction form
    281,785.79/421,680.93 = 175,219.94/x
  3. Step 3: Cross multiply
    281,785.79x = 421,680.93 × 175,219.94
  4. Step 4: Simplify right side
    281,785.79x = 73,886,905,145.34
  5. Step 5: Solve for x
    x = 73,886,905,145.34/281,785.79
  6. Step 6: Final answer
    x = 262,209.48

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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.