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Finding the Fourth Proportional to 170,341.92, 255,319.10 and 103,635

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Solution

The fourth proportional to 170,341.92, 255,319.10 and 103,635 is: 155,334.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,341.92 : 255,319.10 = 103,635 : x
  2. Step 2: Convert to fraction form
    170,341.92/255,319.10 = 103,635/x
  3. Step 3: Cross multiply
    170,341.92x = 255,319.10 × 103,635
  4. Step 4: Simplify right side
    170,341.92x = 26,459,994,928.50
  5. Step 5: Solve for x
    x = 26,459,994,928.50/170,341.92
  6. Step 6: Final answer
    x = 155,334.61

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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.