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Finding the Fourth Proportional to 115,152.63, 172,728.95 and 44,982.74

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Solution

The fourth proportional to 115,152.63, 172,728.95 and 44,982.74 is: 67,474.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,152.63 : 172,728.95 = 44,982.74 : x
  2. Step 2: Convert to fraction form
    115,152.63/172,728.95 = 44,982.74/x
  3. Step 3: Cross multiply
    115,152.63x = 172,728.95 × 44,982.74
  4. Step 4: Simplify right side
    115,152.63x = 7,769,821,448.32
  5. Step 5: Solve for x
    x = 7,769,821,448.32/115,152.63
  6. Step 6: Final answer
    x = 67,474.11

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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.