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Finding the Fourth Proportional to 266,656.59, 368,078.72 and 153,524.43

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Solution

The fourth proportional to 266,656.59, 368,078.72 and 153,524.43 is: 211,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,656.59 : 368,078.72 = 153,524.43 : x
  2. Step 2: Convert to fraction form
    266,656.59/368,078.72 = 153,524.43/x
  3. Step 3: Cross multiply
    266,656.59x = 368,078.72 × 153,524.43
  4. Step 4: Simplify right side
    266,656.59x = 56,509,074,915.51
  5. Step 5: Solve for x
    x = 56,509,074,915.51/266,656.59
  6. Step 6: Final answer
    x = 211,917.04

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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.