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Finding the Fourth Proportional to 143,649.36, 215,499.76 and 48,874.77

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Solution

The fourth proportional to 143,649.36, 215,499.76 and 48,874.77 is: 73,320.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,649.36 : 215,499.76 = 48,874.77 : x
  2. Step 2: Convert to fraction form
    143,649.36/215,499.76 = 48,874.77/x
  3. Step 3: Cross multiply
    143,649.36x = 215,499.76 × 48,874.77
  4. Step 4: Simplify right side
    143,649.36x = 10,532,501,082.87
  5. Step 5: Solve for x
    x = 10,532,501,082.87/143,649.36
  6. Step 6: Final answer
    x = 73,320.91

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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.