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Finding the Fourth Proportional to 247,384.64, 370,781.71 and 135,093.13

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Solution

The fourth proportional to 247,384.64, 370,781.71 and 135,093.13 is: 202,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,384.64 : 370,781.71 = 135,093.13 : x
  2. Step 2: Convert to fraction form
    247,384.64/370,781.71 = 135,093.13/x
  3. Step 3: Cross multiply
    247,384.64x = 370,781.71 × 135,093.13
  4. Step 4: Simplify right side
    247,384.64x = 50,090,061,750.65
  5. Step 5: Solve for x
    x = 50,090,061,750.65/247,384.64
  6. Step 6: Final answer
    x = 202,478.46

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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.