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Finding the Fourth Proportional to 264,878.60, 396,972.30 and 122,707.40

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Solution

The fourth proportional to 264,878.60, 396,972.30 and 122,707.40 is: 183,901.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,878.60 : 396,972.30 = 122,707.40 : x
  2. Step 2: Convert to fraction form
    264,878.60/396,972.30 = 122,707.40/x
  3. Step 3: Cross multiply
    264,878.60x = 396,972.30 × 122,707.40
  4. Step 4: Simplify right side
    264,878.60x = 48,711,438,805.02
  5. Step 5: Solve for x
    x = 48,711,438,805.02/264,878.60
  6. Step 6: Final answer
    x = 183,901.00

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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.