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Finding the Fourth Proportional to 237,218.80, 355,870.32 and 79,463.20

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Solution

The fourth proportional to 237,218.80, 355,870.32 and 79,463.20 is: 119,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,218.80 : 355,870.32 = 79,463.20 : x
  2. Step 2: Convert to fraction form
    237,218.80/355,870.32 = 79,463.20/x
  3. Step 3: Cross multiply
    237,218.80x = 355,870.32 × 79,463.20
  4. Step 4: Simplify right side
    237,218.80x = 28,278,594,412.22
  5. Step 5: Solve for x
    x = 28,278,594,412.22/237,218.80
  6. Step 6: Final answer
    x = 119,208.91

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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.