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Finding the Fourth Proportional to 210,694.64, 316,040.80 and 70,452.08

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Solution

The fourth proportional to 210,694.64, 316,040.80 and 70,452.08 is: 105,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,694.64 : 316,040.80 = 70,452.08 : x
  2. Step 2: Convert to fraction form
    210,694.64/316,040.80 = 70,452.08/x
  3. Step 3: Cross multiply
    210,694.64x = 316,040.80 × 70,452.08
  4. Step 4: Simplify right side
    210,694.64x = 22,265,731,724.86
  5. Step 5: Solve for x
    x = 22,265,731,724.86/210,694.64
  6. Step 6: Final answer
    x = 105,677.73

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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.