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Finding the Fourth Proportional to 332,931.72, 499,447.32 and 122,553.66

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Solution

The fourth proportional to 332,931.72, 499,447.32 and 122,553.66 is: 183,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,931.72 : 499,447.32 = 122,553.66 : x
  2. Step 2: Convert to fraction form
    332,931.72/499,447.32 = 122,553.66/x
  3. Step 3: Cross multiply
    332,931.72x = 499,447.32 × 122,553.66
  4. Step 4: Simplify right side
    332,931.72x = 61,209,097,043.19
  5. Step 5: Solve for x
    x = 61,209,097,043.19/332,931.72
  6. Step 6: Final answer
    x = 183,848.80

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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.