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Finding the Fourth Proportional to 132,875.40, 199,620.30 and 91,403.40

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Solution

The fourth proportional to 132,875.40, 199,620.30 and 91,403.40 is: 137,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,875.40 : 199,620.30 = 91,403.40 : x
  2. Step 2: Convert to fraction form
    132,875.40/199,620.30 = 91,403.40/x
  3. Step 3: Cross multiply
    132,875.40x = 199,620.30 × 91,403.40
  4. Step 4: Simplify right side
    132,875.40x = 18,245,974,129.02
  5. Step 5: Solve for x
    x = 18,245,974,129.02/132,875.40
  6. Step 6: Final answer
    x = 137,316.42

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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.