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Finding the Fourth Proportional to 85,125.72, 117,472.53 and 46,884.54

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Solution

The fourth proportional to 85,125.72, 117,472.53 and 46,884.54 is: 64,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,125.72 : 117,472.53 = 46,884.54 : x
  2. Step 2: Convert to fraction form
    85,125.72/117,472.53 = 46,884.54/x
  3. Step 3: Cross multiply
    85,125.72x = 117,472.53 × 46,884.54
  4. Step 4: Simplify right side
    85,125.72x = 5,507,645,531.69
  5. Step 5: Solve for x
    x = 5,507,645,531.69/85,125.72
  6. Step 6: Final answer
    x = 64,700.13

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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.