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Finding the Fourth Proportional to 153,182.84, 211,388.64 and 85,199.64

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Solution

The fourth proportional to 153,182.84, 211,388.64 and 85,199.64 is: 117,573.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,182.84 : 211,388.64 = 85,199.64 : x
  2. Step 2: Convert to fraction form
    153,182.84/211,388.64 = 85,199.64/x
  3. Step 3: Cross multiply
    153,182.84x = 211,388.64 × 85,199.64
  4. Step 4: Simplify right side
    153,182.84x = 18,010,236,028.09
  5. Step 5: Solve for x
    x = 18,010,236,028.09/153,182.84
  6. Step 6: Final answer
    x = 117,573.46

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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.