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Finding the Fourth Proportional to 329,670.15, 494,341.13 and 105,001.47

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Solution

The fourth proportional to 329,670.15, 494,341.13 and 105,001.47 is: 157,449.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,670.15 : 494,341.13 = 105,001.47 : x
  2. Step 2: Convert to fraction form
    329,670.15/494,341.13 = 105,001.47/x
  3. Step 3: Cross multiply
    329,670.15x = 494,341.13 × 105,001.47
  4. Step 4: Simplify right side
    329,670.15x = 51,906,544,806.45
  5. Step 5: Solve for x
    x = 51,906,544,806.45/329,670.15
  6. Step 6: Final answer
    x = 157,449.94

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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.