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Finding the Fourth Proportional to 251,793.10, 377,700.05 and 74,300.11

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Solution

The fourth proportional to 251,793.10, 377,700.05 and 74,300.11 is: 111,453.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,793.10 : 377,700.05 = 74,300.11 : x
  2. Step 2: Convert to fraction form
    251,793.10/377,700.05 = 74,300.11/x
  3. Step 3: Cross multiply
    251,793.10x = 377,700.05 × 74,300.11
  4. Step 4: Simplify right side
    251,793.10x = 28,063,154,503.51
  5. Step 5: Solve for x
    x = 28,063,154,503.51/251,793.10
  6. Step 6: Final answer
    x = 111,453.23

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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.