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Finding the Fourth Proportional to 253,381.18, 349,610.49 and 151,391.32

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Solution

The fourth proportional to 253,381.18, 349,610.49 and 151,391.32 is: 208,886.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,381.18 : 349,610.49 = 151,391.32 : x
  2. Step 2: Convert to fraction form
    253,381.18/349,610.49 = 151,391.32/x
  3. Step 3: Cross multiply
    253,381.18x = 349,610.49 × 151,391.32
  4. Step 4: Simplify right side
    253,381.18x = 52,927,993,566.95
  5. Step 5: Solve for x
    x = 52,927,993,566.95/253,381.18
  6. Step 6: Final answer
    x = 208,886.84

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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.