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Finding the Fourth Proportional to 132,548.10, 182,917.16 and 72,119.19

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Solution

The fourth proportional to 132,548.10, 182,917.16 and 72,119.19 is: 99,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,548.10 : 182,917.16 = 72,119.19 : x
  2. Step 2: Convert to fraction form
    132,548.10/182,917.16 = 72,119.19/x
  3. Step 3: Cross multiply
    132,548.10x = 182,917.16 × 72,119.19
  4. Step 4: Simplify right side
    132,548.10x = 13,191,837,055.70
  5. Step 5: Solve for x
    x = 13,191,837,055.70/132,548.10
  6. Step 6: Final answer
    x = 99,524.90

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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.