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Finding the Fourth Proportional to 446,274.64, 669,417.45 and 130,737.97

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Solution

The fourth proportional to 446,274.64, 669,417.45 and 130,737.97 is: 196,108.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,274.64 : 669,417.45 = 130,737.97 : x
  2. Step 2: Convert to fraction form
    446,274.64/669,417.45 = 130,737.97/x
  3. Step 3: Cross multiply
    446,274.64x = 669,417.45 × 130,737.97
  4. Step 4: Simplify right side
    446,274.64x = 87,518,278,495.58
  5. Step 5: Solve for x
    x = 87,518,278,495.58/446,274.64
  6. Step 6: Final answer
    x = 196,108.56

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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.