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Finding the Fourth Proportional to 253,043.58, 349,156.23 and 156,301.64

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Solution

The fourth proportional to 253,043.58, 349,156.23 and 156,301.64 is: 215,669.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,043.58 : 349,156.23 = 156,301.64 : x
  2. Step 2: Convert to fraction form
    253,043.58/349,156.23 = 156,301.64/x
  3. Step 3: Cross multiply
    253,043.58x = 349,156.23 × 156,301.64
  4. Step 4: Simplify right side
    253,043.58x = 54,573,691,365.22
  5. Step 5: Solve for x
    x = 54,573,691,365.22/253,043.58
  6. Step 6: Final answer
    x = 215,669.14

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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.