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Finding the Fourth Proportional to 163,412.48, 245,132.84 and 45,083.82

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Solution

The fourth proportional to 163,412.48, 245,132.84 and 45,083.82 is: 67,629.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,412.48 : 245,132.84 = 45,083.82 : x
  2. Step 2: Convert to fraction form
    163,412.48/245,132.84 = 45,083.82/x
  3. Step 3: Cross multiply
    163,412.48x = 245,132.84 × 45,083.82
  4. Step 4: Simplify right side
    163,412.48x = 11,051,524,834.65
  5. Step 5: Solve for x
    x = 11,051,524,834.65/163,412.48
  6. Step 6: Final answer
    x = 67,629.63

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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.