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Finding the Fourth Proportional to 200,611.58, 300,751.52 and 156,434.18

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Solution

The fourth proportional to 200,611.58, 300,751.52 and 156,434.18 is: 234,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,611.58 : 300,751.52 = 156,434.18 : x
  2. Step 2: Convert to fraction form
    200,611.58/300,751.52 = 156,434.18/x
  3. Step 3: Cross multiply
    200,611.58x = 300,751.52 × 156,434.18
  4. Step 4: Simplify right side
    200,611.58x = 47,047,815,129.03
  5. Step 5: Solve for x
    x = 47,047,815,129.03/200,611.58
  6. Step 6: Final answer
    x = 234,521.94

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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.