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Finding the Fourth Proportional to 333,132.80, 499,526.40 and 122,662.40

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Solution

The fourth proportional to 333,132.80, 499,526.40 and 122,662.40 is: 183,929.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,132.80 : 499,526.40 = 122,662.40 : x
  2. Step 2: Convert to fraction form
    333,132.80/499,526.40 = 122,662.40/x
  3. Step 3: Cross multiply
    333,132.80x = 499,526.40 × 122,662.40
  4. Step 4: Simplify right side
    333,132.80x = 61,273,107,087.36
  5. Step 5: Solve for x
    x = 61,273,107,087.36/333,132.80
  6. Step 6: Final answer
    x = 183,929.97

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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.