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Finding the Fourth Proportional to 72,193.73, 108,308.84 and 58,280.18

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Solution

The fourth proportional to 72,193.73, 108,308.84 and 58,280.18 is: 87,434.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,193.73 : 108,308.84 = 58,280.18 : x
  2. Step 2: Convert to fraction form
    72,193.73/108,308.84 = 58,280.18/x
  3. Step 3: Cross multiply
    72,193.73x = 108,308.84 × 58,280.18
  4. Step 4: Simplify right side
    72,193.73x = 6,312,257,857.85
  5. Step 5: Solve for x
    x = 6,312,257,857.85/72,193.73
  6. Step 6: Final answer
    x = 87,434.99

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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.