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Finding the Fourth Proportional to 309,244.64, 464,041.92 and 131,733.12

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Solution

The fourth proportional to 309,244.64, 464,041.92 and 131,733.12 is: 197,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,244.64 : 464,041.92 = 131,733.12 : x
  2. Step 2: Convert to fraction form
    309,244.64/464,041.92 = 131,733.12/x
  3. Step 3: Cross multiply
    309,244.64x = 464,041.92 × 131,733.12
  4. Step 4: Simplify right side
    309,244.64x = 61,129,689,932.39
  5. Step 5: Solve for x
    x = 61,129,689,932.39/309,244.64
  6. Step 6: Final answer
    x = 197,674.21

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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.