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Finding the Fourth Proportional to 170,598.68, 255,930.83 and 65,409.45

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Solution

The fourth proportional to 170,598.68, 255,930.83 and 65,409.45 is: 98,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,598.68 : 255,930.83 = 65,409.45 : x
  2. Step 2: Convert to fraction form
    170,598.68/255,930.83 = 65,409.45/x
  3. Step 3: Cross multiply
    170,598.68x = 255,930.83 × 65,409.45
  4. Step 4: Simplify right side
    170,598.68x = 16,740,294,828.34
  5. Step 5: Solve for x
    x = 16,740,294,828.34/170,598.68
  6. Step 6: Final answer
    x = 98,126.75

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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.