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Finding the Fourth Proportional to 282,441.48, 423,661.88 and 72,079.44

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Solution

The fourth proportional to 282,441.48, 423,661.88 and 72,079.44 is: 108,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,441.48 : 423,661.88 = 72,079.44 : x
  2. Step 2: Convert to fraction form
    282,441.48/423,661.88 = 72,079.44/x
  3. Step 3: Cross multiply
    282,441.48x = 423,661.88 × 72,079.44
  4. Step 4: Simplify right side
    282,441.48x = 30,537,311,059.75
  5. Step 5: Solve for x
    x = 30,537,311,059.75/282,441.48
  6. Step 6: Final answer
    x = 108,119.07

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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.