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Finding the Fourth Proportional to 130,960.61, 196,720.79 and 93,759.74

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Solution

The fourth proportional to 130,960.61, 196,720.79 and 93,759.74 is: 140,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,960.61 : 196,720.79 = 93,759.74 : x
  2. Step 2: Convert to fraction form
    130,960.61/196,720.79 = 93,759.74/x
  3. Step 3: Cross multiply
    130,960.61x = 196,720.79 × 93,759.74
  4. Step 4: Simplify right side
    130,960.61x = 18,444,490,122.99
  5. Step 5: Solve for x
    x = 18,444,490,122.99/130,960.61
  6. Step 6: Final answer
    x = 140,839.98

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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.