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Finding the Fourth Proportional to 410,831.80, 616,305.30 and 161,455.80

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Solution

The fourth proportional to 410,831.80, 616,305.30 and 161,455.80 is: 242,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,831.80 : 616,305.30 = 161,455.80 : x
  2. Step 2: Convert to fraction form
    410,831.80/616,305.30 = 161,455.80/x
  3. Step 3: Cross multiply
    410,831.80x = 616,305.30 × 161,455.80
  4. Step 4: Simplify right side
    410,831.80x = 99,506,065,255.74
  5. Step 5: Solve for x
    x = 99,506,065,255.74/410,831.80
  6. Step 6: Final answer
    x = 242,206.34

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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.