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Finding the Fourth Proportional to 114,855.87, 172,292.01 and 30,615.59

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Solution

The fourth proportional to 114,855.87, 172,292.01 and 30,615.59 is: 45,925.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,855.87 : 172,292.01 = 30,615.59 : x
  2. Step 2: Convert to fraction form
    114,855.87/172,292.01 = 30,615.59/x
  3. Step 3: Cross multiply
    114,855.87x = 172,292.01 × 30,615.59
  4. Step 4: Simplify right side
    114,855.87x = 5,274,821,854.36
  5. Step 5: Solve for x
    x = 5,274,821,854.36/114,855.87
  6. Step 6: Final answer
    x = 45,925.57

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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.