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Finding the Fourth Proportional to 266,388.58, 367,641.56 and 145,548.02

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Solution

The fourth proportional to 266,388.58, 367,641.56 and 145,548.02 is: 200,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,388.58 : 367,641.56 = 145,548.02 : x
  2. Step 2: Convert to fraction form
    266,388.58/367,641.56 = 145,548.02/x
  3. Step 3: Cross multiply
    266,388.58x = 367,641.56 × 145,548.02
  4. Step 4: Simplify right side
    266,388.58x = 53,509,499,653.37
  5. Step 5: Solve for x
    x = 53,509,499,653.37/266,388.58
  6. Step 6: Final answer
    x = 200,870.10

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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.