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Finding the Fourth Proportional to 163,962.53, 245,920.42 and 51,639.82

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Solution

The fourth proportional to 163,962.53, 245,920.42 and 51,639.82 is: 77,452.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,962.53 : 245,920.42 = 51,639.82 : x
  2. Step 2: Convert to fraction form
    163,962.53/245,920.42 = 51,639.82/x
  3. Step 3: Cross multiply
    163,962.53x = 245,920.42 × 51,639.82
  4. Step 4: Simplify right side
    163,962.53x = 12,699,285,479.22
  5. Step 5: Solve for x
    x = 12,699,285,479.22/163,962.53
  6. Step 6: Final answer
    x = 77,452.36

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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.