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Finding the Fourth Proportional to 144,330.39, 216,528.39 and 65,467.17

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Solution

The fourth proportional to 144,330.39, 216,528.39 and 65,467.17 is: 98,215.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,330.39 : 216,528.39 = 65,467.17 : x
  2. Step 2: Convert to fraction form
    144,330.39/216,528.39 = 65,467.17/x
  3. Step 3: Cross multiply
    144,330.39x = 216,528.39 × 65,467.17
  4. Step 4: Simplify right side
    144,330.39x = 14,175,500,917.96
  5. Step 5: Solve for x
    x = 14,175,500,917.96/144,330.39
  6. Step 6: Final answer
    x = 98,215.64

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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.