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Finding the Fourth Proportional to 170,097.92, 255,136.64 and 75,300.36

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Solution

The fourth proportional to 170,097.92, 255,136.64 and 75,300.36 is: 112,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,097.92 : 255,136.64 = 75,300.36 : x
  2. Step 2: Convert to fraction form
    170,097.92/255,136.64 = 75,300.36/x
  3. Step 3: Cross multiply
    170,097.92x = 255,136.64 × 75,300.36
  4. Step 4: Simplify right side
    170,097.92x = 19,211,880,841.19
  5. Step 5: Solve for x
    x = 19,211,880,841.19/170,097.92
  6. Step 6: Final answer
    x = 112,946.01

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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.