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Finding the Fourth Proportional to 103,560.70, 142,918.92 and 58,252.94

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Solution

The fourth proportional to 103,560.70, 142,918.92 and 58,252.94 is: 80,391.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,560.70 : 142,918.92 = 58,252.94 : x
  2. Step 2: Convert to fraction form
    103,560.70/142,918.92 = 58,252.94/x
  3. Step 3: Cross multiply
    103,560.70x = 142,918.92 × 58,252.94
  4. Step 4: Simplify right side
    103,560.70x = 8,325,447,271.62
  5. Step 5: Solve for x
    x = 8,325,447,271.62/103,560.70
  6. Step 6: Final answer
    x = 80,391.96

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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.