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Finding the Fourth Proportional to 464,080.13, 696,120.74 and 127,123.69

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Solution

The fourth proportional to 464,080.13, 696,120.74 and 127,123.69 is: 190,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,080.13 : 696,120.74 = 127,123.69 : x
  2. Step 2: Convert to fraction form
    464,080.13/696,120.74 = 127,123.69/x
  3. Step 3: Cross multiply
    464,080.13x = 696,120.74 × 127,123.69
  4. Step 4: Simplify right side
    464,080.13x = 88,493,433,673.73
  5. Step 5: Solve for x
    x = 88,493,433,673.73/464,080.13
  6. Step 6: Final answer
    x = 190,685.68

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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.