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Finding the Fourth Proportional to 374,852.48, 562,190.40 and 138,066.56

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Solution

The fourth proportional to 374,852.48, 562,190.40 and 138,066.56 is: 207,067.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,852.48 : 562,190.40 = 138,066.56 : x
  2. Step 2: Convert to fraction form
    374,852.48/562,190.40 = 138,066.56/x
  3. Step 3: Cross multiply
    374,852.48x = 562,190.40 × 138,066.56
  4. Step 4: Simplify right side
    374,852.48x = 77,619,694,593.02
  5. Step 5: Solve for x
    x = 77,619,694,593.02/374,852.48
  6. Step 6: Final answer
    x = 207,067.31

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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.