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Finding the Fourth Proportional to 215,066.67, 296,793.56 and 134,539.98

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Solution

The fourth proportional to 215,066.67, 296,793.56 and 134,539.98 is: 185,666.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,066.67 : 296,793.56 = 134,539.98 : x
  2. Step 2: Convert to fraction form
    215,066.67/296,793.56 = 134,539.98/x
  3. Step 3: Cross multiply
    215,066.67x = 296,793.56 × 134,539.98
  4. Step 4: Simplify right side
    215,066.67x = 39,930,599,962.88
  5. Step 5: Solve for x
    x = 39,930,599,962.88/215,066.67
  6. Step 6: Final answer
    x = 185,666.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.