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Finding the Fourth Proportional to 193,158, 266,559 and 112,641.36

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Solution

The fourth proportional to 193,158, 266,559 and 112,641.36 is: 155,445.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,158 : 266,559 = 112,641.36 : x
  2. Step 2: Convert to fraction form
    193,158/266,559 = 112,641.36/x
  3. Step 3: Cross multiply
    193,158x = 266,559 × 112,641.36
  4. Step 4: Simplify right side
    193,158x = 30,025,568,280.24
  5. Step 5: Solve for x
    x = 30,025,568,280.24/193,158
  6. Step 6: Final answer
    x = 155,445.64

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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.