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Finding the Fourth Proportional to 183,953.28, 275,939.64 and 78,666.24

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Solution

The fourth proportional to 183,953.28, 275,939.64 and 78,666.24 is: 118,003.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,953.28 : 275,939.64 = 78,666.24 : x
  2. Step 2: Convert to fraction form
    183,953.28/275,939.64 = 78,666.24/x
  3. Step 3: Cross multiply
    183,953.28x = 275,939.64 × 78,666.24
  4. Step 4: Simplify right side
    183,953.28x = 21,707,133,945.75
  5. Step 5: Solve for x
    x = 21,707,133,945.75/183,953.28
  6. Step 6: Final answer
    x = 118,003.52

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1.5x scale

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.