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Finding the Fourth Proportional to 132,910.40, 199,400.80 and 57,998.40

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Solution

The fourth proportional to 132,910.40, 199,400.80 and 57,998.40 is: 87,012.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,910.40 : 199,400.80 = 57,998.40 : x
  2. Step 2: Convert to fraction form
    132,910.40/199,400.80 = 57,998.40/x
  3. Step 3: Cross multiply
    132,910.40x = 199,400.80 × 57,998.40
  4. Step 4: Simplify right side
    132,910.40x = 11,564,927,358.72
  5. Step 5: Solve for x
    x = 11,564,927,358.72/132,910.40
  6. Step 6: Final answer
    x = 87,012.96

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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.