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Finding the Fourth Proportional to 203,247.10, 304,870.65 and 191,842.30

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Solution

The fourth proportional to 203,247.10, 304,870.65 and 191,842.30 is: 287,763.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,247.10 : 304,870.65 = 191,842.30 : x
  2. Step 2: Convert to fraction form
    203,247.10/304,870.65 = 191,842.30/x
  3. Step 3: Cross multiply
    203,247.10x = 304,870.65 × 191,842.30
  4. Step 4: Simplify right side
    203,247.10x = 58,487,086,698.50
  5. Step 5: Solve for x
    x = 58,487,086,698.50/203,247.10
  6. Step 6: Final answer
    x = 287,763.45

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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.