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Finding the Fourth Proportional to 193,293.17, 266,757.90 and 108,415.70

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Solution

The fourth proportional to 193,293.17, 266,757.90 and 108,415.70 is: 149,621.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,293.17 : 266,757.90 = 108,415.70 : x
  2. Step 2: Convert to fraction form
    193,293.17/266,757.90 = 108,415.70/x
  3. Step 3: Cross multiply
    193,293.17x = 266,757.90 × 108,415.70
  4. Step 4: Simplify right side
    193,293.17x = 28,920,744,459.03
  5. Step 5: Solve for x
    x = 28,920,744,459.03/193,293.17
  6. Step 6: Final answer
    x = 149,621.14

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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.