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Finding the Fourth Proportional to 100,783.30, 151,029.15 and 44,577.40

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Solution

The fourth proportional to 100,783.30, 151,029.15 and 44,577.40 is: 66,801.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,783.30 : 151,029.15 = 44,577.40 : x
  2. Step 2: Convert to fraction form
    100,783.30/151,029.15 = 44,577.40/x
  3. Step 3: Cross multiply
    100,783.30x = 151,029.15 × 44,577.40
  4. Step 4: Simplify right side
    100,783.30x = 6,732,486,831.21
  5. Step 5: Solve for x
    x = 6,732,486,831.21/100,783.30
  6. Step 6: Final answer
    x = 66,801.61

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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.