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Finding the Fourth Proportional to 85,062.75, 117,386.60 and 47,337.03

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Solution

The fourth proportional to 85,062.75, 117,386.60 and 47,337.03 is: 65,325.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.75 : 117,386.60 = 47,337.03 : x
  2. Step 2: Convert to fraction form
    85,062.75/117,386.60 = 47,337.03/x
  3. Step 3: Cross multiply
    85,062.75x = 117,386.60 × 47,337.03
  4. Step 4: Simplify right side
    85,062.75x = 5,556,732,769.11
  5. Step 5: Solve for x
    x = 5,556,732,769.11/85,062.75
  6. Step 6: Final answer
    x = 65,325.10

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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.