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Finding the Fourth Proportional to 291,833.78, 437,764.08 and 89,415.38

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Solution

The fourth proportional to 291,833.78, 437,764.08 and 89,415.38 is: 134,127.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,833.78 : 437,764.08 = 89,415.38 : x
  2. Step 2: Convert to fraction form
    291,833.78/437,764.08 = 89,415.38/x
  3. Step 3: Cross multiply
    291,833.78x = 437,764.08 × 89,415.38
  4. Step 4: Simplify right side
    291,833.78x = 39,142,841,563.55
  5. Step 5: Solve for x
    x = 39,142,841,563.55/291,833.78
  6. Step 6: Final answer
    x = 134,127.18

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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.