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Finding the Fourth Proportional to 153,593, 212,029.38 and 108,307.88

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Solution

The fourth proportional to 153,593, 212,029.38 and 108,307.88 is: 149,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,593 : 212,029.38 = 108,307.88 : x
  2. Step 2: Convert to fraction form
    153,593/212,029.38 = 108,307.88/x
  3. Step 3: Cross multiply
    153,593x = 212,029.38 × 108,307.88
  4. Step 4: Simplify right side
    153,593x = 22,964,452,645.51
  5. Step 5: Solve for x
    x = 22,964,452,645.51/153,593
  6. Step 6: Final answer
    x = 149,514.97

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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.