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Finding the Fourth Proportional to 127,284.84, 175,659.30 and 70,695

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Solution

The fourth proportional to 127,284.84, 175,659.30 and 70,695 is: 97,562.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,284.84 : 175,659.30 = 70,695 : x
  2. Step 2: Convert to fraction form
    127,284.84/175,659.30 = 70,695/x
  3. Step 3: Cross multiply
    127,284.84x = 175,659.30 × 70,695
  4. Step 4: Simplify right side
    127,284.84x = 12,418,234,213.50
  5. Step 5: Solve for x
    x = 12,418,234,213.50/127,284.84
  6. Step 6: Final answer
    x = 97,562.56

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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.