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Finding the Fourth Proportional to 117,528, 176,175.36 and 55,086.72

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Solution

The fourth proportional to 117,528, 176,175.36 and 55,086.72 is: 82,575.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,528 : 176,175.36 = 55,086.72 : x
  2. Step 2: Convert to fraction form
    117,528/176,175.36 = 55,086.72/x
  3. Step 3: Cross multiply
    117,528x = 176,175.36 × 55,086.72
  4. Step 4: Simplify right side
    117,528x = 9,704,922,727.22
  5. Step 5: Solve for x
    x = 9,704,922,727.22/117,528
  6. Step 6: Final answer
    x = 82,575.41

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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.