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Finding the Fourth Proportional to 163,618.99, 245,401.14 and 45,302.29

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Solution

The fourth proportional to 163,618.99, 245,401.14 and 45,302.29 is: 67,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,618.99 : 245,401.14 = 45,302.29 : x
  2. Step 2: Convert to fraction form
    163,618.99/245,401.14 = 45,302.29/x
  3. Step 3: Cross multiply
    163,618.99x = 245,401.14 × 45,302.29
  4. Step 4: Simplify right side
    163,618.99x = 11,117,233,610.61
  5. Step 5: Solve for x
    x = 11,117,233,610.61/163,618.99
  6. Step 6: Final answer
    x = 67,945.86

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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.