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Finding the Fourth Proportional to 316,183.69, 474,240.60 and 79,526.46

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Solution

The fourth proportional to 316,183.69, 474,240.60 and 79,526.46 is: 119,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,183.69 : 474,240.60 = 79,526.46 : x
  2. Step 2: Convert to fraction form
    316,183.69/474,240.60 = 79,526.46/x
  3. Step 3: Cross multiply
    316,183.69x = 474,240.60 × 79,526.46
  4. Step 4: Simplify right side
    316,183.69x = 37,714,676,106.28
  5. Step 5: Solve for x
    x = 37,714,676,106.28/316,183.69
  6. Step 6: Final answer
    x = 119,280.90

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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.