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Finding the Fourth Proportional to 348,703.85, 523,055.81 and 112,212.61

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Solution

The fourth proportional to 348,703.85, 523,055.81 and 112,212.61 is: 168,318.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,703.85 : 523,055.81 = 112,212.61 : x
  2. Step 2: Convert to fraction form
    348,703.85/523,055.81 = 112,212.61/x
  3. Step 3: Cross multiply
    348,703.85x = 523,055.81 × 112,212.61
  4. Step 4: Simplify right side
    348,703.85x = 58,693,456,588.66
  5. Step 5: Solve for x
    x = 58,693,456,588.66/348,703.85
  6. Step 6: Final answer
    x = 168,318.92

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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.