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Finding the Fourth Proportional to 63,888.58, 88,106.43 and 50,491.83

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Solution

The fourth proportional to 63,888.58, 88,106.43 and 50,491.83 is: 69,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,888.58 : 88,106.43 = 50,491.83 : x
  2. Step 2: Convert to fraction form
    63,888.58/88,106.43 = 50,491.83/x
  3. Step 3: Cross multiply
    63,888.58x = 88,106.43 × 50,491.83
  4. Step 4: Simplify right side
    63,888.58x = 4,448,655,405.21
  5. Step 5: Solve for x
    x = 4,448,655,405.21/63,888.58
  6. Step 6: Final answer
    x = 69,631.47

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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.