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Finding the Fourth Proportional to 100,095.33, 138,133.31 and 54,777.33

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Solution

The fourth proportional to 100,095.33, 138,133.31 and 54,777.33 is: 75,593.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,095.33 : 138,133.31 = 54,777.33 : x
  2. Step 2: Convert to fraction form
    100,095.33/138,133.31 = 54,777.33/x
  3. Step 3: Cross multiply
    100,095.33x = 138,133.31 × 54,777.33
  4. Step 4: Simplify right side
    100,095.33x = 7,566,573,905.86
  5. Step 5: Solve for x
    x = 7,566,573,905.86/100,095.33
  6. Step 6: Final answer
    x = 75,593.68

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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.