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Finding the Fourth Proportional to 144,448.84, 216,724.58 and 64,479.56

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Solution

The fourth proportional to 144,448.84, 216,724.58 and 64,479.56 is: 96,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,448.84 : 216,724.58 = 64,479.56 : x
  2. Step 2: Convert to fraction form
    144,448.84/216,724.58 = 64,479.56/x
  3. Step 3: Cross multiply
    144,448.84x = 216,724.58 × 64,479.56
  4. Step 4: Simplify right side
    144,448.84x = 13,974,305,559.58
  5. Step 5: Solve for x
    x = 13,974,305,559.58/144,448.84
  6. Step 6: Final answer
    x = 96,742.25

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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.