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Finding the Fourth Proportional to 266,975.01, 368,558.82 and 153,775.89

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Solution

The fourth proportional to 266,975.01, 368,558.82 and 153,775.89 is: 212,287.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,975.01 : 368,558.82 = 153,775.89 : x
  2. Step 2: Convert to fraction form
    266,975.01/368,558.82 = 153,775.89/x
  3. Step 3: Cross multiply
    266,975.01x = 368,558.82 × 153,775.89
  4. Step 4: Simplify right side
    266,975.01x = 56,675,460,562.85
  5. Step 5: Solve for x
    x = 56,675,460,562.85/266,975.01
  6. Step 6: Final answer
    x = 212,287.51

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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.