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Finding the Fourth Proportional to 163,871.92, 245,903.28 and 69,096.16

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Solution

The fourth proportional to 163,871.92, 245,903.28 and 69,096.16 is: 103,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,871.92 : 245,903.28 = 69,096.16 : x
  2. Step 2: Convert to fraction form
    163,871.92/245,903.28 = 69,096.16/x
  3. Step 3: Cross multiply
    163,871.92x = 245,903.28 × 69,096.16
  4. Step 4: Simplify right side
    163,871.92x = 16,990,972,379.40
  5. Step 5: Solve for x
    x = 16,990,972,379.40/163,871.92
  6. Step 6: Final answer
    x = 103,684.47

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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.