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Finding the Fourth Proportional to 637,722.81, 956,639.30 and 164,404.17

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Solution

The fourth proportional to 637,722.81, 956,639.30 and 164,404.17 is: 246,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,722.81 : 956,639.30 = 164,404.17 : x
  2. Step 2: Convert to fraction form
    637,722.81/956,639.30 = 164,404.17/x
  3. Step 3: Cross multiply
    637,722.81x = 956,639.30 × 164,404.17
  4. Step 4: Simplify right side
    637,722.81x = 157,275,489,283.86
  5. Step 5: Solve for x
    x = 157,275,489,283.86/637,722.81
  6. Step 6: Final answer
    x = 246,620.45

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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.