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Finding the Fourth Proportional to 266,895.76, 368,449.41 and 153,696.64

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Solution

The fourth proportional to 266,895.76, 368,449.41 and 153,696.64 is: 212,178.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,895.76 : 368,449.41 = 153,696.64 : x
  2. Step 2: Convert to fraction form
    266,895.76/368,449.41 = 153,696.64/x
  3. Step 3: Cross multiply
    266,895.76x = 368,449.41 × 153,696.64
  4. Step 4: Simplify right side
    266,895.76x = 56,629,436,326.98
  5. Step 5: Solve for x
    x = 56,629,436,326.98/266,895.76
  6. Step 6: Final answer
    x = 212,178.10

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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.