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Finding the Fourth Proportional to 163,799.99, 245,701.35 and 45,480.56

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Solution

The fourth proportional to 163,799.99, 245,701.35 and 45,480.56 is: 68,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,799.99 : 245,701.35 = 45,480.56 : x
  2. Step 2: Convert to fraction form
    163,799.99/245,701.35 = 45,480.56/x
  3. Step 3: Cross multiply
    163,799.99x = 245,701.35 × 45,480.56
  4. Step 4: Simplify right side
    163,799.99x = 11,174,633,762.25
  5. Step 5: Solve for x
    x = 11,174,633,762.25/163,799.99
  6. Step 6: Final answer
    x = 68,221.21

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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.