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Finding the Fourth Proportional to 296,718.12, 445,104.54 and 97,039.62

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Solution

The fourth proportional to 296,718.12, 445,104.54 and 97,039.62 is: 145,568.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,718.12 : 445,104.54 = 97,039.62 : x
  2. Step 2: Convert to fraction form
    296,718.12/445,104.54 = 97,039.62/x
  3. Step 3: Cross multiply
    296,718.12x = 445,104.54 × 97,039.62
  4. Step 4: Simplify right side
    296,718.12x = 43,192,775,421.87
  5. Step 5: Solve for x
    x = 43,192,775,421.87/296,718.12
  6. Step 6: Final answer
    x = 145,568.38

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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.