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Finding the Fourth Proportional to 144,473.67, 216,689.04 and 55,716.12

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Solution

The fourth proportional to 144,473.67, 216,689.04 and 55,716.12 is: 83,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,473.67 : 216,689.04 = 55,716.12 : x
  2. Step 2: Convert to fraction form
    144,473.67/216,689.04 = 55,716.12/x
  3. Step 3: Cross multiply
    144,473.67x = 216,689.04 × 55,716.12
  4. Step 4: Simplify right side
    144,473.67x = 12,073,072,555.32
  5. Step 5: Solve for x
    x = 12,073,072,555.32/144,473.67
  6. Step 6: Final answer
    x = 83,565.90

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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.