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Finding the Fourth Proportional to 183,456.81, 253,062.90 and 115,365.78

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Solution

The fourth proportional to 183,456.81, 253,062.90 and 115,365.78 is: 159,137.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,456.81 : 253,062.90 = 115,365.78 : x
  2. Step 2: Convert to fraction form
    183,456.81/253,062.90 = 115,365.78/x
  3. Step 3: Cross multiply
    183,456.81x = 253,062.90 × 115,365.78
  4. Step 4: Simplify right side
    183,456.81x = 29,194,798,847.56
  5. Step 5: Solve for x
    x = 29,194,798,847.56/183,456.81
  6. Step 6: Final answer
    x = 159,137.18

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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.