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Finding the Fourth Proportional to 104,407.54, 144,082.78 and 56,660.86

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Solution

The fourth proportional to 104,407.54, 144,082.78 and 56,660.86 is: 78,192.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,407.54 : 144,082.78 = 56,660.86 : x
  2. Step 2: Convert to fraction form
    104,407.54/144,082.78 = 56,660.86/x
  3. Step 3: Cross multiply
    104,407.54x = 144,082.78 × 56,660.86
  4. Step 4: Simplify right side
    104,407.54x = 8,163,854,225.99
  5. Step 5: Solve for x
    x = 8,163,854,225.99/104,407.54
  6. Step 6: Final answer
    x = 78,192.19

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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.