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Finding the Fourth Proportional to 160,122.68, 220,970.17 and 87,525.67

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Solution

The fourth proportional to 160,122.68, 220,970.17 and 87,525.67 is: 120,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,122.68 : 220,970.17 = 87,525.67 : x
  2. Step 2: Convert to fraction form
    160,122.68/220,970.17 = 87,525.67/x
  3. Step 3: Cross multiply
    160,122.68x = 220,970.17 × 87,525.67
  4. Step 4: Simplify right side
    160,122.68x = 19,340,561,741.64
  5. Step 5: Solve for x
    x = 19,340,561,741.64/160,122.68
  6. Step 6: Final answer
    x = 120,785.90

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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.