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Finding the Fourth Proportional to 114,446.80, 171,810.60 and 72,326.80

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Solution

The fourth proportional to 114,446.80, 171,810.60 and 72,326.80 is: 108,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,446.80 : 171,810.60 = 72,326.80 : x
  2. Step 2: Convert to fraction form
    114,446.80/171,810.60 = 72,326.80/x
  3. Step 3: Cross multiply
    114,446.80x = 171,810.60 × 72,326.80
  4. Step 4: Simplify right side
    114,446.80x = 12,426,510,904.08
  5. Step 5: Solve for x
    x = 12,426,510,904.08/114,446.80
  6. Step 6: Final answer
    x = 108,578.93

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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.