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Finding the Fourth Proportional to 218,323.58, 327,374.59 and 99,893.43

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Solution

The fourth proportional to 218,323.58, 327,374.59 and 99,893.43 is: 149,789.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,323.58 : 327,374.59 = 99,893.43 : x
  2. Step 2: Convert to fraction form
    218,323.58/327,374.59 = 99,893.43/x
  3. Step 3: Cross multiply
    218,323.58x = 327,374.59 × 99,893.43
  4. Step 4: Simplify right side
    218,323.58x = 32,702,569,425.82
  5. Step 5: Solve for x
    x = 32,702,569,425.82/218,323.58
  6. Step 6: Final answer
    x = 149,789.45

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1.5x scale

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.