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Finding the Fourth Proportional to 201,677.20, 302,515.80 and 192,000.40

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Solution

The fourth proportional to 201,677.20, 302,515.80 and 192,000.40 is: 288,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,677.20 : 302,515.80 = 192,000.40 : x
  2. Step 2: Convert to fraction form
    201,677.20/302,515.80 = 192,000.40/x
  3. Step 3: Cross multiply
    201,677.20x = 302,515.80 × 192,000.40
  4. Step 4: Simplify right side
    201,677.20x = 58,083,154,606.32
  5. Step 5: Solve for x
    x = 58,083,154,606.32/201,677.20
  6. Step 6: Final answer
    x = 288,000.60

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1.5x scale

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.