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Finding the Fourth Proportional to 313,187.36, 432,192.56 and 177,218.83

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Solution

The fourth proportional to 313,187.36, 432,192.56 and 177,218.83 is: 244,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,187.36 : 432,192.56 = 177,218.83 : x
  2. Step 2: Convert to fraction form
    313,187.36/432,192.56 = 177,218.83/x
  3. Step 3: Cross multiply
    313,187.36x = 432,192.56 × 177,218.83
  4. Step 4: Simplify right side
    313,187.36x = 76,592,657,851.33
  5. Step 5: Solve for x
    x = 76,592,657,851.33/313,187.36
  6. Step 6: Final answer
    x = 244,558.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.