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Finding the Fourth Proportional to 377,840.80, 566,628.90 and 111,530.80

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Solution

The fourth proportional to 377,840.80, 566,628.90 and 111,530.80 is: 167,257.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,840.80 : 566,628.90 = 111,530.80 : x
  2. Step 2: Convert to fraction form
    377,840.80/566,628.90 = 111,530.80/x
  3. Step 3: Cross multiply
    377,840.80x = 566,628.90 × 111,530.80
  4. Step 4: Simplify right side
    377,840.80x = 63,196,574,520.12
  5. Step 5: Solve for x
    x = 63,196,574,520.12/377,840.80
  6. Step 6: Final answer
    x = 167,257.15

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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.