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Finding the Fourth Proportional to 332,866.56, 499,276.80 and 122,465.28

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Solution

The fourth proportional to 332,866.56, 499,276.80 and 122,465.28 is: 183,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,866.56 : 499,276.80 = 122,465.28 : x
  2. Step 2: Convert to fraction form
    332,866.56/499,276.80 = 122,465.28/x
  3. Step 3: Cross multiply
    332,866.56x = 499,276.80 × 122,465.28
  4. Step 4: Simplify right side
    332,866.56x = 61,144,073,109.50
  5. Step 5: Solve for x
    x = 61,144,073,109.50/332,866.56
  6. Step 6: Final answer
    x = 183,689.44

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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.