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Finding the Fourth Proportional to 245,061.20, 367,591.80 and 223,288.40

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Solution

The fourth proportional to 245,061.20, 367,591.80 and 223,288.40 is: 334,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,061.20 : 367,591.80 = 223,288.40 : x
  2. Step 2: Convert to fraction form
    245,061.20/367,591.80 = 223,288.40/x
  3. Step 3: Cross multiply
    245,061.20x = 367,591.80 × 223,288.40
  4. Step 4: Simplify right side
    245,061.20x = 82,078,984,875.12
  5. Step 5: Solve for x
    x = 82,078,984,875.12/245,061.20
  6. Step 6: Final answer
    x = 334,932.60

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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.