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Finding the Fourth Proportional to 132,628.98, 198,766 and 65,057.70

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Solution

The fourth proportional to 132,628.98, 198,766 and 65,057.70 is: 97,499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,628.98 : 198,766 = 65,057.70 : x
  2. Step 2: Convert to fraction form
    132,628.98/198,766 = 65,057.70/x
  3. Step 3: Cross multiply
    132,628.98x = 198,766 × 65,057.70
  4. Step 4: Simplify right side
    132,628.98x = 12,931,258,798.20
  5. Step 5: Solve for x
    x = 12,931,258,798.20/132,628.98
  6. Step 6: Final answer
    x = 97,499.50

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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.