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Finding the Fourth Proportional to 120,457.92, 180,715.59 and 41,572.83

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Solution

The fourth proportional to 120,457.92, 180,715.59 and 41,572.83 is: 62,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,457.92 : 180,715.59 = 41,572.83 : x
  2. Step 2: Convert to fraction form
    120,457.92/180,715.59 = 41,572.83/x
  3. Step 3: Cross multiply
    120,457.92x = 180,715.59 × 41,572.83
  4. Step 4: Simplify right side
    120,457.92x = 7,512,858,501.42
  5. Step 5: Solve for x
    x = 7,512,858,501.42/120,457.92
  6. Step 6: Final answer
    x = 62,369.15

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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.