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Finding the Fourth Proportional to 333,423.36, 499,893.12 and 155,831.04

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Solution

The fourth proportional to 333,423.36, 499,893.12 and 155,831.04 is: 233,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,423.36 : 499,893.12 = 155,831.04 : x
  2. Step 2: Convert to fraction form
    333,423.36/499,893.12 = 155,831.04/x
  3. Step 3: Cross multiply
    333,423.36x = 499,893.12 × 155,831.04
  4. Step 4: Simplify right side
    333,423.36x = 77,898,864,778.44
  5. Step 5: Solve for x
    x = 77,898,864,778.44/333,423.36
  6. Step 6: Final answer
    x = 233,633.49

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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.