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Finding the Fourth Proportional to 264,111.80, 396,081.30 and 97,878.20

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Solution

The fourth proportional to 264,111.80, 396,081.30 and 97,878.20 is: 146,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,111.80 : 396,081.30 = 97,878.20 : x
  2. Step 2: Convert to fraction form
    264,111.80/396,081.30 = 97,878.20/x
  3. Step 3: Cross multiply
    264,111.80x = 396,081.30 × 97,878.20
  4. Step 4: Simplify right side
    264,111.80x = 38,767,724,697.66
  5. Step 5: Solve for x
    x = 38,767,724,697.66/264,111.80
  6. Step 6: Final answer
    x = 146,785.28

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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.