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Finding the Fourth Proportional to 484,671.02, 727,016.26 and 129,684.48

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Solution

The fourth proportional to 484,671.02, 727,016.26 and 129,684.48 is: 194,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,671.02 : 727,016.26 = 129,684.48 : x
  2. Step 2: Convert to fraction form
    484,671.02/727,016.26 = 129,684.48/x
  3. Step 3: Cross multiply
    484,671.02x = 727,016.26 × 129,684.48
  4. Step 4: Simplify right side
    484,671.02x = 94,282,725,629.64
  5. Step 5: Solve for x
    x = 94,282,725,629.64/484,671.02
  6. Step 6: Final answer
    x = 194,529.32

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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.