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Finding the Fourth Proportional to 472,459.20, 708,831.86 and 168,813.59

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Solution

The fourth proportional to 472,459.20, 708,831.86 and 168,813.59 is: 253,271.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,459.20 : 708,831.86 = 168,813.59 : x
  2. Step 2: Convert to fraction form
    472,459.20/708,831.86 = 168,813.59/x
  3. Step 3: Cross multiply
    472,459.20x = 708,831.86 × 168,813.59
  4. Step 4: Simplify right side
    472,459.20x = 119,660,446,604.75
  5. Step 5: Solve for x
    x = 119,660,446,604.75/472,459.20
  6. Step 6: Final answer
    x = 253,271.49

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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.