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Finding the Fourth Proportional to 114,254.96, 157,669.34 and 66,507.28

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Solution

The fourth proportional to 114,254.96, 157,669.34 and 66,507.28 is: 91,778.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,254.96 : 157,669.34 = 66,507.28 : x
  2. Step 2: Convert to fraction form
    114,254.96/157,669.34 = 66,507.28/x
  3. Step 3: Cross multiply
    114,254.96x = 157,669.34 × 66,507.28
  4. Step 4: Simplify right side
    114,254.96x = 10,486,158,216.09
  5. Step 5: Solve for x
    x = 10,486,158,216.09/114,254.96
  6. Step 6: Final answer
    x = 91,778.59

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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.