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Finding the Fourth Proportional to 211,244.02, 316,866.26 and 53,472.47

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Solution

The fourth proportional to 211,244.02, 316,866.26 and 53,472.47 is: 80,208.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,244.02 : 316,866.26 = 53,472.47 : x
  2. Step 2: Convert to fraction form
    211,244.02/316,866.26 = 53,472.47/x
  3. Step 3: Cross multiply
    211,244.02x = 316,866.26 × 53,472.47
  4. Step 4: Simplify right side
    211,244.02x = 16,943,621,913.58
  5. Step 5: Solve for x
    x = 16,943,621,913.58/211,244.02
  6. Step 6: Final answer
    x = 80,208.77

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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.