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Finding the Fourth Proportional to 661,282.56, 991,774.80 and 187,957.44

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Solution

The fourth proportional to 661,282.56, 991,774.80 and 187,957.44 is: 281,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,282.56 : 991,774.80 = 187,957.44 : x
  2. Step 2: Convert to fraction form
    661,282.56/991,774.80 = 187,957.44/x
  3. Step 3: Cross multiply
    661,282.56x = 991,774.80 × 187,957.44
  4. Step 4: Simplify right side
    661,282.56x = 186,411,452,464.51
  5. Step 5: Solve for x
    x = 186,411,452,464.51/661,282.56
  6. Step 6: Final answer
    x = 281,893.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.