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Finding the Fourth Proportional to 273,276.80, 377,064.64 and 165,903.36

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Solution

The fourth proportional to 273,276.80, 377,064.64 and 165,903.36 is: 228,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,276.80 : 377,064.64 = 165,903.36 : x
  2. Step 2: Convert to fraction form
    273,276.80/377,064.64 = 165,903.36/x
  3. Step 3: Cross multiply
    273,276.80x = 377,064.64 × 165,903.36
  4. Step 4: Simplify right side
    273,276.80x = 62,556,290,713.19
  5. Step 5: Solve for x
    x = 62,556,290,713.19/273,276.80
  6. Step 6: Final answer
    x = 228,911.82

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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.