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Finding the Fourth Proportional to 163,616.99, 245,425.82 and 45,288.67

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Solution

The fourth proportional to 163,616.99, 245,425.82 and 45,288.67 is: 67,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,616.99 : 245,425.82 = 45,288.67 : x
  2. Step 2: Convert to fraction form
    163,616.99/245,425.82 = 45,288.67/x
  3. Step 3: Cross multiply
    163,616.99x = 245,425.82 × 45,288.67
  4. Step 4: Simplify right side
    163,616.99x = 11,115,008,973.75
  5. Step 5: Solve for x
    x = 11,115,008,973.75/163,616.99
  6. Step 6: Final answer
    x = 67,933.10

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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.