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Finding the Fourth Proportional to 153,452.88, 211,822.56 and 113,488.29

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Solution

The fourth proportional to 153,452.88, 211,822.56 and 113,488.29 is: 156,656.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,452.88 : 211,822.56 = 113,488.29 : x
  2. Step 2: Convert to fraction form
    153,452.88/211,822.56 = 113,488.29/x
  3. Step 3: Cross multiply
    153,452.88x = 211,822.56 × 113,488.29
  4. Step 4: Simplify right side
    153,452.88x = 24,039,380,117.82
  5. Step 5: Solve for x
    x = 24,039,380,117.82/153,452.88
  6. Step 6: Final answer
    x = 156,656.43

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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.