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Finding the Fourth Proportional to 60,653.72, 91,045.26 and 53,678.09

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Solution

The fourth proportional to 60,653.72, 91,045.26 and 53,678.09 is: 80,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,653.72 : 91,045.26 = 53,678.09 : x
  2. Step 2: Convert to fraction form
    60,653.72/91,045.26 = 53,678.09/x
  3. Step 3: Cross multiply
    60,653.72x = 91,045.26 × 53,678.09
  4. Step 4: Simplify right side
    60,653.72x = 4,887,135,205.13
  5. Step 5: Solve for x
    x = 4,887,135,205.13/60,653.72
  6. Step 6: Final answer
    x = 80,574.38

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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.