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Finding the Fourth Proportional to 211,262.04, 316,893.60 and 53,490.51

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Solution

The fourth proportional to 211,262.04, 316,893.60 and 53,490.51 is: 80,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,262.04 : 316,893.60 = 53,490.51 : x
  2. Step 2: Convert to fraction form
    211,262.04/316,893.60 = 53,490.51/x
  3. Step 3: Cross multiply
    211,262.04x = 316,893.60 × 53,490.51
  4. Step 4: Simplify right side
    211,262.04x = 16,950,800,279.74
  5. Step 5: Solve for x
    x = 16,950,800,279.74/211,262.04
  6. Step 6: Final answer
    x = 80,235.90

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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.