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Finding the Fourth Proportional to 315,081.76, 472,696.60 and 193,637.64

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Solution

The fourth proportional to 315,081.76, 472,696.60 and 193,637.64 is: 290,501.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,081.76 : 472,696.60 = 193,637.64 : x
  2. Step 2: Convert to fraction form
    315,081.76/472,696.60 = 193,637.64/x
  3. Step 3: Cross multiply
    315,081.76x = 472,696.60 × 193,637.64
  4. Step 4: Simplify right side
    315,081.76x = 91,531,854,060.02
  5. Step 5: Solve for x
    x = 91,531,854,060.02/315,081.76
  6. Step 6: Final answer
    x = 290,501.91

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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.