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Finding the Fourth Proportional to 291,363.01, 437,043.89 and 91,700.84

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Solution

The fourth proportional to 291,363.01, 437,043.89 and 91,700.84 is: 137,551.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,363.01 : 437,043.89 = 91,700.84 : x
  2. Step 2: Convert to fraction form
    291,363.01/437,043.89 = 91,700.84/x
  3. Step 3: Cross multiply
    291,363.01x = 437,043.89 × 91,700.84
  4. Step 4: Simplify right side
    291,363.01x = 40,077,293,151.73
  5. Step 5: Solve for x
    x = 40,077,293,151.73/291,363.01
  6. Step 6: Final answer
    x = 137,551.07

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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.