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Finding the Fourth Proportional to 115,257.72, 172,845.02 and 48,703.01

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Solution

The fourth proportional to 115,257.72, 172,845.02 and 48,703.01 is: 73,036.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,257.72 : 172,845.02 = 48,703.01 : x
  2. Step 2: Convert to fraction form
    115,257.72/172,845.02 = 48,703.01/x
  3. Step 3: Cross multiply
    115,257.72x = 172,845.02 × 48,703.01
  4. Step 4: Simplify right side
    115,257.72x = 8,418,071,629.77
  5. Step 5: Solve for x
    x = 8,418,071,629.77/115,257.72
  6. Step 6: Final answer
    x = 73,036.94

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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.