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Finding the Fourth Proportional to 161,686.62, 223,132.59 and 92,788.67

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Solution

The fourth proportional to 161,686.62, 223,132.59 and 92,788.67 is: 128,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,686.62 : 223,132.59 = 92,788.67 : x
  2. Step 2: Convert to fraction form
    161,686.62/223,132.59 = 92,788.67/x
  3. Step 3: Cross multiply
    161,686.62x = 223,132.59 × 92,788.67
  4. Step 4: Simplify right side
    161,686.62x = 20,704,176,817.59
  5. Step 5: Solve for x
    x = 20,704,176,817.59/161,686.62
  6. Step 6: Final answer
    x = 128,051.27

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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.