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Finding the Fourth Proportional to 174,387.84, 261,737.28 and 80,946.24

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Solution

The fourth proportional to 174,387.84, 261,737.28 and 80,946.24 is: 121,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,387.84 : 261,737.28 = 80,946.24 : x
  2. Step 2: Convert to fraction form
    174,387.84/261,737.28 = 80,946.24/x
  3. Step 3: Cross multiply
    174,387.84x = 261,737.28 × 80,946.24
  4. Step 4: Simplify right side
    174,387.84x = 21,186,648,683.83
  5. Step 5: Solve for x
    x = 21,186,648,683.83/174,387.84
  6. Step 6: Final answer
    x = 121,491.55

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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.