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Finding the Fourth Proportional to 193,079.40, 289,645.98 and 59,969.80

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Solution

The fourth proportional to 193,079.40, 289,645.98 and 59,969.80 is: 89,963.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,079.40 : 289,645.98 = 59,969.80 : x
  2. Step 2: Convert to fraction form
    193,079.40/289,645.98 = 59,969.80/x
  3. Step 3: Cross multiply
    193,079.40x = 289,645.98 × 59,969.80
  4. Step 4: Simplify right side
    193,079.40x = 17,370,011,491.40
  5. Step 5: Solve for x
    x = 17,370,011,491.40/193,079.40
  6. Step 6: Final answer
    x = 89,963.05

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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.