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Finding the Fourth Proportional to 105,572.52, 145,690.26 and 57,825.96

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Solution

The fourth proportional to 105,572.52, 145,690.26 and 57,825.96 is: 79,799.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,572.52 : 145,690.26 = 57,825.96 : x
  2. Step 2: Convert to fraction form
    105,572.52/145,690.26 = 57,825.96/x
  3. Step 3: Cross multiply
    105,572.52x = 145,690.26 × 57,825.96
  4. Step 4: Simplify right side
    105,572.52x = 8,424,679,147.15
  5. Step 5: Solve for x
    x = 8,424,679,147.15/105,572.52
  6. Step 6: Final answer
    x = 79,799.92

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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.