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Finding the Fourth Proportional to 273,874.48, 377,909.21 and 153,000.74

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Solution

The fourth proportional to 273,874.48, 377,909.21 and 153,000.74 is: 211,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,874.48 : 377,909.21 = 153,000.74 : x
  2. Step 2: Convert to fraction form
    273,874.48/377,909.21 = 153,000.74/x
  3. Step 3: Cross multiply
    273,874.48x = 377,909.21 × 153,000.74
  4. Step 4: Simplify right side
    273,874.48x = 57,820,388,017.81
  5. Step 5: Solve for x
    x = 57,820,388,017.81/273,874.48
  6. Step 6: Final answer
    x = 211,120.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.