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Finding the Fourth Proportional to 210,757.55, 290,844.77 and 113,960.74

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Solution

The fourth proportional to 210,757.55, 290,844.77 and 113,960.74 is: 157,265.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,757.55 : 290,844.77 = 113,960.74 : x
  2. Step 2: Convert to fraction form
    210,757.55/290,844.77 = 113,960.74/x
  3. Step 3: Cross multiply
    210,757.55x = 290,844.77 × 113,960.74
  4. Step 4: Simplify right side
    210,757.55x = 33,144,884,772.12
  5. Step 5: Solve for x
    x = 33,144,884,772.12/210,757.55
  6. Step 6: Final answer
    x = 157,265.47

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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.