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Finding the Fourth Proportional to 96,635.70, 144,953.55 and 86,794.20

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Solution

The fourth proportional to 96,635.70, 144,953.55 and 86,794.20 is: 130,191.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,635.70 : 144,953.55 = 86,794.20 : x
  2. Step 2: Convert to fraction form
    96,635.70/144,953.55 = 86,794.20/x
  3. Step 3: Cross multiply
    96,635.70x = 144,953.55 × 86,794.20
  4. Step 4: Simplify right side
    96,635.70x = 12,581,127,409.41
  5. Step 5: Solve for x
    x = 12,581,127,409.41/96,635.70
  6. Step 6: Final answer
    x = 130,191.30

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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.