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Finding the Fourth Proportional to 153,393.14, 211,608.24 and 98,930.90

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Solution

The fourth proportional to 153,393.14, 211,608.24 and 98,930.90 is: 136,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,393.14 : 211,608.24 = 98,930.90 : x
  2. Step 2: Convert to fraction form
    153,393.14/211,608.24 = 98,930.90/x
  3. Step 3: Cross multiply
    153,393.14x = 211,608.24 × 98,930.90
  4. Step 4: Simplify right side
    153,393.14x = 20,934,593,630.62
  5. Step 5: Solve for x
    x = 20,934,593,630.62/153,393.14
  6. Step 6: Final answer
    x = 136,476.73

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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.