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Finding the Fourth Proportional to 151,230.77, 208,687.73 and 89,973.57

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Solution

The fourth proportional to 151,230.77, 208,687.73 and 89,973.57 is: 124,157.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,230.77 : 208,687.73 = 89,973.57 : x
  2. Step 2: Convert to fraction form
    151,230.77/208,687.73 = 89,973.57/x
  3. Step 3: Cross multiply
    151,230.77x = 208,687.73 × 89,973.57
  4. Step 4: Simplify right side
    151,230.77x = 18,776,379,633.43
  5. Step 5: Solve for x
    x = 18,776,379,633.43/151,230.77
  6. Step 6: Final answer
    x = 124,157.14

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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.