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Finding the Fourth Proportional to 144,364.30, 216,544.05 and 43,162.58

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Solution

The fourth proportional to 144,364.30, 216,544.05 and 43,162.58 is: 64,743.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,364.30 : 216,544.05 = 43,162.58 : x
  2. Step 2: Convert to fraction form
    144,364.30/216,544.05 = 43,162.58/x
  3. Step 3: Cross multiply
    144,364.30x = 216,544.05 × 43,162.58
  4. Step 4: Simplify right side
    144,364.30x = 9,346,600,423.01
  5. Step 5: Solve for x
    x = 9,346,600,423.01/144,364.30
  6. Step 6: Final answer
    x = 64,743.16

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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.