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Finding the Fourth Proportional to 266,818.63, 368,216.60 and 145,965.01

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Solution

The fourth proportional to 266,818.63, 368,216.60 and 145,965.01 is: 201,435.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,818.63 : 368,216.60 = 145,965.01 : x
  2. Step 2: Convert to fraction form
    266,818.63/368,216.60 = 145,965.01/x
  3. Step 3: Cross multiply
    266,818.63x = 368,216.60 × 145,965.01
  4. Step 4: Simplify right side
    266,818.63x = 53,746,738,050.80
  5. Step 5: Solve for x
    x = 53,746,738,050.80/266,818.63
  6. Step 6: Final answer
    x = 201,435.48

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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.