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Finding the Fourth Proportional to 73,045.45, 109,574.43 and 25,656.42

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Solution

The fourth proportional to 73,045.45, 109,574.43 and 25,656.42 is: 38,486.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,045.45 : 109,574.43 = 25,656.42 : x
  2. Step 2: Convert to fraction form
    73,045.45/109,574.43 = 25,656.42/x
  3. Step 3: Cross multiply
    73,045.45x = 109,574.43 × 25,656.42
  4. Step 4: Simplify right side
    73,045.45x = 2,811,287,597.34
  5. Step 5: Solve for x
    x = 2,811,287,597.34/73,045.45
  6. Step 6: Final answer
    x = 38,486.83

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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.