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Finding the Fourth Proportional to 193,366.80, 289,769.88 and 137,316.72

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Solution

The fourth proportional to 193,366.80, 289,769.88 and 137,316.72 is: 205,776.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,366.80 : 289,769.88 = 137,316.72 : x
  2. Step 2: Convert to fraction form
    193,366.80/289,769.88 = 137,316.72/x
  3. Step 3: Cross multiply
    193,366.80x = 289,769.88 × 137,316.72
  4. Step 4: Simplify right side
    193,366.80x = 39,790,249,476.39
  5. Step 5: Solve for x
    x = 39,790,249,476.39/193,366.80
  6. Step 6: Final answer
    x = 205,776.01

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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.