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Finding the Fourth Proportional to 201,713.80, 302,570.70 and 61,479.40

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Solution

The fourth proportional to 201,713.80, 302,570.70 and 61,479.40 is: 92,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,713.80 : 302,570.70 = 61,479.40 : x
  2. Step 2: Convert to fraction form
    201,713.80/302,570.70 = 61,479.40/x
  3. Step 3: Cross multiply
    201,713.80x = 302,570.70 × 61,479.40
  4. Step 4: Simplify right side
    201,713.80x = 18,601,865,093.58
  5. Step 5: Solve for x
    x = 18,601,865,093.58/201,713.80
  6. Step 6: Final answer
    x = 92,219.10

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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.