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Finding the Fourth Proportional to 120,632.60, 180,813.42 and 56,622.16

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Solution

The fourth proportional to 120,632.60, 180,813.42 and 56,622.16 is: 84,869.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,632.60 : 180,813.42 = 56,622.16 : x
  2. Step 2: Convert to fraction form
    120,632.60/180,813.42 = 56,622.16/x
  3. Step 3: Cross multiply
    120,632.60x = 180,813.42 × 56,622.16
  4. Step 4: Simplify right side
    120,632.60x = 10,238,046,397.39
  5. Step 5: Solve for x
    x = 10,238,046,397.39/120,632.60
  6. Step 6: Final answer
    x = 84,869.65

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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.