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Finding the Fourth Proportional to 471,563.64, 707,368.92 and 134,654.28

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Solution

The fourth proportional to 471,563.64, 707,368.92 and 134,654.28 is: 201,988.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,563.64 : 707,368.92 = 134,654.28 : x
  2. Step 2: Convert to fraction form
    471,563.64/707,368.92 = 134,654.28/x
  3. Step 3: Cross multiply
    471,563.64x = 707,368.92 × 134,654.28
  4. Step 4: Simplify right side
    471,563.64x = 95,250,252,616.98
  5. Step 5: Solve for x
    x = 95,250,252,616.98/471,563.64
  6. Step 6: Final answer
    x = 201,988.12

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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.