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Finding the Fourth Proportional to 252,832.80, 348,910.44 and 138,113.01

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Solution

The fourth proportional to 252,832.80, 348,910.44 and 138,113.01 is: 190,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,832.80 : 348,910.44 = 138,113.01 : x
  2. Step 2: Convert to fraction form
    252,832.80/348,910.44 = 138,113.01/x
  3. Step 3: Cross multiply
    252,832.80x = 348,910.44 × 138,113.01
  4. Step 4: Simplify right side
    252,832.80x = 48,189,071,088.82
  5. Step 5: Solve for x
    x = 48,189,071,088.82/252,832.80
  6. Step 6: Final answer
    x = 190,596.60

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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.