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Finding the Fourth Proportional to 103,659.67, 143,061.95 and 58,348.67

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Solution

The fourth proportional to 103,659.67, 143,061.95 and 58,348.67 is: 80,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,659.67 : 143,061.95 = 58,348.67 : x
  2. Step 2: Convert to fraction form
    103,659.67/143,061.95 = 58,348.67/x
  3. Step 3: Cross multiply
    103,659.67x = 143,061.95 × 58,348.67
  4. Step 4: Simplify right side
    103,659.67x = 8,347,474,218.36
  5. Step 5: Solve for x
    x = 8,347,474,218.36/103,659.67
  6. Step 6: Final answer
    x = 80,527.70

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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.