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Finding the Fourth Proportional to 332,020.40, 497,728.20 and 121,607.60

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Solution

The fourth proportional to 332,020.40, 497,728.20 and 121,607.60 is: 182,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,020.40 : 497,728.20 = 121,607.60 : x
  2. Step 2: Convert to fraction form
    332,020.40/497,728.20 = 121,607.60/x
  3. Step 3: Cross multiply
    332,020.40x = 497,728.20 × 121,607.60
  4. Step 4: Simplify right side
    332,020.40x = 60,527,531,854.32
  5. Step 5: Solve for x
    x = 60,527,531,854.32/332,020.40
  6. Step 6: Final answer
    x = 182,300.64

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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.