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Finding the Fourth Proportional to 92,629.68, 138,944.64 and 65,050.80

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Solution

The fourth proportional to 92,629.68, 138,944.64 and 65,050.80 is: 97,576.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,629.68 : 138,944.64 = 65,050.80 : x
  2. Step 2: Convert to fraction form
    92,629.68/138,944.64 = 65,050.80/x
  3. Step 3: Cross multiply
    92,629.68x = 138,944.64 × 65,050.80
  4. Step 4: Simplify right side
    92,629.68x = 9,038,459,987.71
  5. Step 5: Solve for x
    x = 9,038,459,987.71/92,629.68
  6. Step 6: Final answer
    x = 97,576.28

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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.