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Finding the Fourth Proportional to 104,407.55, 144,082.52 and 56,660.90

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Solution

The fourth proportional to 104,407.55, 144,082.52 and 56,660.90 is: 78,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,407.55 : 144,082.52 = 56,660.90 : x
  2. Step 2: Convert to fraction form
    104,407.55/144,082.52 = 56,660.90/x
  3. Step 3: Cross multiply
    104,407.55x = 144,082.52 × 56,660.90
  4. Step 4: Simplify right side
    104,407.55x = 8,163,844,253.75
  5. Step 5: Solve for x
    x = 8,163,844,253.75/104,407.55
  6. Step 6: Final answer
    x = 78,192.09

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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.