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Finding the Fourth Proportional to 363,921.98, 545,807.66 and 97,619.18

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Solution

The fourth proportional to 363,921.98, 545,807.66 and 97,619.18 is: 146,408.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,921.98 : 545,807.66 = 97,619.18 : x
  2. Step 2: Convert to fraction form
    363,921.98/545,807.66 = 97,619.18/x
  3. Step 3: Cross multiply
    363,921.98x = 545,807.66 × 97,619.18
  4. Step 4: Simplify right side
    363,921.98x = 53,281,296,206.92
  5. Step 5: Solve for x
    x = 53,281,296,206.92/363,921.98
  6. Step 6: Final answer
    x = 146,408.57

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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.