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Finding the Fourth Proportional to 479,969.80, 719,760.30 and 164,264.20

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Solution

The fourth proportional to 479,969.80, 719,760.30 and 164,264.20 is: 246,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,969.80 : 719,760.30 = 164,264.20 : x
  2. Step 2: Convert to fraction form
    479,969.80/719,760.30 = 164,264.20/x
  3. Step 3: Cross multiply
    479,969.80x = 719,760.30 × 164,264.20
  4. Step 4: Simplify right side
    479,969.80x = 118,230,849,871.26
  5. Step 5: Solve for x
    x = 118,230,849,871.26/479,969.80
  6. Step 6: Final answer
    x = 246,329.77

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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.