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Finding the Fourth Proportional to 297,036.64, 445,671.60 and 130,708

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Solution

The fourth proportional to 297,036.64, 445,671.60 and 130,708 is: 196,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,036.64 : 445,671.60 = 130,708 : x
  2. Step 2: Convert to fraction form
    297,036.64/445,671.60 = 130,708/x
  3. Step 3: Cross multiply
    297,036.64x = 445,671.60 × 130,708
  4. Step 4: Simplify right side
    297,036.64x = 58,252,843,492.80
  5. Step 5: Solve for x
    x = 58,252,843,492.80/297,036.64
  6. Step 6: Final answer
    x = 196,113.33

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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.