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Finding the Fourth Proportional to 163,779.66, 245,669.48 and 45,451.04

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Solution

The fourth proportional to 163,779.66, 245,669.48 and 45,451.04 is: 68,176.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,779.66 : 245,669.48 = 45,451.04 : x
  2. Step 2: Convert to fraction form
    163,779.66/245,669.48 = 45,451.04/x
  3. Step 3: Cross multiply
    163,779.66x = 245,669.48 × 45,451.04
  4. Step 4: Simplify right side
    163,779.66x = 11,165,933,362.26
  5. Step 5: Solve for x
    x = 11,165,933,362.26/163,779.66
  6. Step 6: Final answer
    x = 68,176.56

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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.