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Finding the Fourth Proportional to 144,054.95, 216,066.25 and 55,246.15

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Solution

The fourth proportional to 144,054.95, 216,066.25 and 55,246.15 is: 82,863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,054.95 : 216,066.25 = 55,246.15 : x
  2. Step 2: Convert to fraction form
    144,054.95/216,066.25 = 55,246.15/x
  3. Step 3: Cross multiply
    144,054.95x = 216,066.25 × 55,246.15
  4. Step 4: Simplify right side
    144,054.95x = 11,936,828,457.44
  5. Step 5: Solve for x
    x = 11,936,828,457.44/144,054.95
  6. Step 6: Final answer
    x = 82,863.02

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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.