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Finding the Fourth Proportional to 114,135.20, 171,407.60 and 83,005.60

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Solution

The fourth proportional to 114,135.20, 171,407.60 and 83,005.60 is: 124,657.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,135.20 : 171,407.60 = 83,005.60 : x
  2. Step 2: Convert to fraction form
    114,135.20/171,407.60 = 83,005.60/x
  3. Step 3: Cross multiply
    114,135.20x = 171,407.60 × 83,005.60
  4. Step 4: Simplify right side
    114,135.20x = 14,227,790,682.56
  5. Step 5: Solve for x
    x = 14,227,790,682.56/114,135.20
  6. Step 6: Final answer
    x = 124,657.34

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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.