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Finding the Fourth Proportional to 194,857.90, 292,286.85 and 155,200.30

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Solution

The fourth proportional to 194,857.90, 292,286.85 and 155,200.30 is: 232,800.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,857.90 : 292,286.85 = 155,200.30 : x
  2. Step 2: Convert to fraction form
    194,857.90/292,286.85 = 155,200.30/x
  3. Step 3: Cross multiply
    194,857.90x = 292,286.85 × 155,200.30
  4. Step 4: Simplify right side
    194,857.90x = 45,363,006,806.06
  5. Step 5: Solve for x
    x = 45,363,006,806.06/194,857.90
  6. Step 6: Final answer
    x = 232,800.45

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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.