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Finding the Fourth Proportional to 108,347.45, 162,495.66 and 60,982.70

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Solution

The fourth proportional to 108,347.45, 162,495.66 and 60,982.70 is: 91,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,347.45 : 162,495.66 = 60,982.70 : x
  2. Step 2: Convert to fraction form
    108,347.45/162,495.66 = 60,982.70/x
  3. Step 3: Cross multiply
    108,347.45x = 162,495.66 × 60,982.70
  4. Step 4: Simplify right side
    108,347.45x = 9,909,424,085.08
  5. Step 5: Solve for x
    x = 9,909,424,085.08/108,347.45
  6. Step 6: Final answer
    x = 91,459.69

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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.