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Finding the Fourth Proportional to 356,955.19, 535,596.21 and 154,613.16

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Solution

The fourth proportional to 356,955.19, 535,596.21 and 154,613.16 is: 231,990.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,955.19 : 535,596.21 = 154,613.16 : x
  2. Step 2: Convert to fraction form
    356,955.19/535,596.21 = 154,613.16/x
  3. Step 3: Cross multiply
    356,955.19x = 535,596.21 × 154,613.16
  4. Step 4: Simplify right side
    356,955.19x = 82,810,222,512.12
  5. Step 5: Solve for x
    x = 82,810,222,512.12/356,955.19
  6. Step 6: Final answer
    x = 231,990.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.