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Finding the Fourth Proportional to 210,958.56, 316,397.52 and 63,214.56

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Solution

The fourth proportional to 210,958.56, 316,397.52 and 63,214.56 is: 94,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,958.56 : 316,397.52 = 63,214.56 : x
  2. Step 2: Convert to fraction form
    210,958.56/316,397.52 = 63,214.56/x
  3. Step 3: Cross multiply
    210,958.56x = 316,397.52 × 63,214.56
  4. Step 4: Simplify right side
    210,958.56x = 20,000,930,011.89
  5. Step 5: Solve for x
    x = 20,000,930,011.89/210,958.56
  6. Step 6: Final answer
    x = 94,809.76

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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.