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Finding the Fourth Proportional to 613,290.75, 919,871.38 and 164,056.96

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Solution

The fourth proportional to 613,290.75, 919,871.38 and 164,056.96 is: 246,068.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,290.75 : 919,871.38 = 164,056.96 : x
  2. Step 2: Convert to fraction form
    613,290.75/919,871.38 = 164,056.96/x
  3. Step 3: Cross multiply
    613,290.75x = 919,871.38 × 164,056.96
  4. Step 4: Simplify right side
    613,290.75x = 150,911,302,193.81
  5. Step 5: Solve for x
    x = 150,911,302,193.81/613,290.75
  6. Step 6: Final answer
    x = 246,068.12

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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.