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Finding the Fourth Proportional to 115,302.65, 172,947.74 and 35,340.89

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Solution

The fourth proportional to 115,302.65, 172,947.74 and 35,340.89 is: 53,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,302.65 : 172,947.74 = 35,340.89 : x
  2. Step 2: Convert to fraction form
    115,302.65/172,947.74 = 35,340.89/x
  3. Step 3: Cross multiply
    115,302.65x = 172,947.74 × 35,340.89
  4. Step 4: Simplify right side
    115,302.65x = 6,112,126,013.65
  5. Step 5: Solve for x
    x = 6,112,126,013.65/115,302.65
  6. Step 6: Final answer
    x = 53,009.42

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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.