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Finding the Fourth Proportional to 163,712.90, 245,569.42 and 73,650.42

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Solution

The fourth proportional to 163,712.90, 245,569.42 and 73,650.42 is: 110,475.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,712.90 : 245,569.42 = 73,650.42 : x
  2. Step 2: Convert to fraction form
    163,712.90/245,569.42 = 73,650.42/x
  3. Step 3: Cross multiply
    163,712.90x = 245,569.42 × 73,650.42
  4. Step 4: Simplify right side
    163,712.90x = 18,086,291,014.22
  5. Step 5: Solve for x
    x = 18,086,291,014.22/163,712.90
  6. Step 6: Final answer
    x = 110,475.66

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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.