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Finding the Fourth Proportional to 163,688.80, 245,662.80 and 63,896.80

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Solution

The fourth proportional to 163,688.80, 245,662.80 and 63,896.80 is: 95,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,688.80 : 245,662.80 = 63,896.80 : x
  2. Step 2: Convert to fraction form
    163,688.80/245,662.80 = 63,896.80/x
  3. Step 3: Cross multiply
    163,688.80x = 245,662.80 × 63,896.80
  4. Step 4: Simplify right side
    163,688.80x = 15,697,066,799.04
  5. Step 5: Solve for x
    x = 15,697,066,799.04/163,688.80
  6. Step 6: Final answer
    x = 95,895.79

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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.