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Finding the Fourth Proportional to 223,426.70, 335,107.65 and 65,638.70

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Solution

The fourth proportional to 223,426.70, 335,107.65 and 65,638.70 is: 98,448.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,426.70 : 335,107.65 = 65,638.70 : x
  2. Step 2: Convert to fraction form
    223,426.70/335,107.65 = 65,638.70/x
  3. Step 3: Cross multiply
    223,426.70x = 335,107.65 × 65,638.70
  4. Step 4: Simplify right side
    223,426.70x = 21,996,030,506.06
  5. Step 5: Solve for x
    x = 21,996,030,506.06/223,426.70
  6. Step 6: Final answer
    x = 98,448.53

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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.