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Finding the Fourth Proportional to 215,062.08, 322,354.08 and 162,300.48

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Solution

The fourth proportional to 215,062.08, 322,354.08 and 162,300.48 is: 243,270.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,062.08 : 322,354.08 = 162,300.48 : x
  2. Step 2: Convert to fraction form
    215,062.08/322,354.08 = 162,300.48/x
  3. Step 3: Cross multiply
    215,062.08x = 322,354.08 × 162,300.48
  4. Step 4: Simplify right side
    215,062.08x = 52,318,221,913.96
  5. Step 5: Solve for x
    x = 52,318,221,913.96/215,062.08
  6. Step 6: Final answer
    x = 243,270.32

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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.