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Finding the Fourth Proportional to 215,042.86, 322,527.88 and 65,247.02

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Solution

The fourth proportional to 215,042.86, 322,527.88 and 65,247.02 is: 97,859.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,042.86 : 322,527.88 = 65,247.02 : x
  2. Step 2: Convert to fraction form
    215,042.86/322,527.88 = 65,247.02/x
  3. Step 3: Cross multiply
    215,042.86x = 322,527.88 × 65,247.02
  4. Step 4: Simplify right side
    215,042.86x = 21,043,983,036.92
  5. Step 5: Solve for x
    x = 21,043,983,036.92/215,042.86
  6. Step 6: Final answer
    x = 97,859.48

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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.