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Finding the Fourth Proportional to 197,003.72, 295,534.74 and 72,335

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Solution

The fourth proportional to 197,003.72, 295,534.74 and 72,335 is: 108,513.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,003.72 : 295,534.74 = 72,335 : x
  2. Step 2: Convert to fraction form
    197,003.72/295,534.74 = 72,335/x
  3. Step 3: Cross multiply
    197,003.72x = 295,534.74 × 72,335
  4. Step 4: Simplify right side
    197,003.72x = 21,377,505,417.90
  5. Step 5: Solve for x
    x = 21,377,505,417.90/197,003.72
  6. Step 6: Final answer
    x = 108,513.21

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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.